OAT Biology - Problem Drill 03: Cell Processes - Metabolism and Cellular Respiration

Size: px
Start display at page:

Download "OAT Biology - Problem Drill 03: Cell Processes - Metabolism and Cellular Respiration"

Transcription

1 OAT Biology - Problem Drill 03: Cell Processes - Metabolism and Cellular Respiration Question No. 1 of What is the final electron acceptor in aerobic respiration? Question #01 (A) NADH (B) Mitochondria (C) Carbon Dioxide (D) Oxygen (E) FADH 2 NADH is the first donor to the electron transport chain in aerobic respiration. The process of aerobic respiration occurs in the mitochondrion. Carbon dioxide is a waste product of aerobic respiration. D. Correct! Oxygen is the final electron acceptor in aerobic respiration. FADH 2 is one of the first donors to the electron transport chain in aerobic respiration. Aerobic respiration produces a grand total of 36 ATP and involves three steps: Glycolysis Glucose is broken down into pyruvate. Krebs Cycle Acetyl CoA (made from pyruvate) runs a cycle of reactions, regenerating at the end of each cycle. All of the electrons are passed to NADH and FADH 2 (electron carriers). Oxidative Phosphorylation NADH and FADH 2 carry electrons to protein machines. NADH and FADH 2 pass electrons to machines, which pass them to the final acceptor: oxygen. As they pass electrons, machines pump hydrogen ions to create a concentration gradient. Hydrogen ions flow back due to concentration gradient. Flowing hydrogen ions spin the motor of ATP synthase. ATP synthase produces ATP. 3 The correct answer is (D).

2 Question No. 2 of During which of these conditions will the majority of an organism s metabolic reactions not be anabolic? Question #02 (A) Feeding Period (B) Resting Period (C) Stress Reaction (D) Nutrient Storage (E) None of the above The body is undergoing catabolism during feeding periods. B. Correct! The body is primarily undergoing anabolism when the body is at rest. The body is undergoing catabolism during stress periods. The body is undergoing catabolism and anabolism during nutrient storage. The answer is among those listed above. Anabolic reactions are build-up reactions. The body will only undergo anabolic reactions when it is resting. Catabolic reactions are breakdown reactions and releases of energy. The body tends to use catabolic reactions when under stress. The correct answer is (B).

3 Question No. 3 of Where does the carbon dioxide, which humans and other organisms exhale, come from? Question #03 (A) Chemical Gradients (B) Protein Anabolism (C) Glycolysis (D) Krebs Cycle (E) Oxidative Phosphorylation Chemical gradients do not have a direct effect on carbon dioxide production. Protein anabolism does not have a direct effect on carbon dioxide production. Glycolysis does not produce carbon dioxide. D. Correct! The Krebs cycle produces the carbon dioxide that is exhaled. Oxidative phosphorylation does not produce carbon dioxide. Aerobic respiration produces a grand total of 36 ATP and involves three steps: Glycolysis Glucose is broken down into pyruvate. Krebs Cycle Acetyl CoA (made from pyruvate) runs a cycle of reactions, regenerating at the end of each cycle. All of the electrons are passed to NADH and FADH 2 (electron carriers). Oxidative Phosphorylation NADH and FADH 2 carry electrons to protein machines. NADH and FADH 2 pass electrons to machines, which pass them to the final acceptor: oxygen. As they pass electrons, machines pump hydrogen ions to create a concentration gradient. Hydrogen ions flow back due to concentration gradient. Flowing hydrogen ions spin the motor of ATP synthase. ATP synthase produces ATP. 3 The correct answer is (D).

4 Question No. 4 of What is the sum of all chemical reactions? Question #04 (A) Metabolism (B) Anabolism (C) Hydrolysis (D) Dehydration synthesis (E) Reduction A. Correct! Metabolism is the sum of all chemical reactions. Anabolism is to build up reactions. Hydrolysis is the process used to split apart macromolecules. Dehydration synthesis is the process that is used to build up macromolecules. Reduction is the gaining of electrons and hydrogens. Metabolism is the sum of all chemical reactions that occur. There is a catabolic reaction, in which there is a breakdown of materials, and there is an anabolic reaction, in which there is a buildup of materials. Anabolism Conditions: excess resources, feeding, and resting. Activities: creation of new structures and storage of nutrients. Role of ATP: requires energy. Catabolism Conditions: deficient resources, fasting, and stress. Activities: destruction of old structures and breakdown of food. Role of ATP: releases energy. The correct answer is (A).

5 Question No. 5 of If aerobic respiration produces 32 ATP and anaerobic respiration produces merely 2 ATP, why do cells use anaerobic respiration at all? (Why not just wait until oxygen is available?) Question #05 (A) Advanced organisms do not perform anaerobic respiration. (B) Anaerobic respiration produces ATP much more quickly in times of stress. (C) Anaerobic respiration doesn t produce as much waste as aerobic respiration. (D) Anaerobic respiration is important for genetic reproduction. (E) Anaerobic respiration is only done at periods of rest. Advanced organisms have the ability to perform anaerobic respiration. B. Correct! Anaerobic respiration does produce ATP more quickly in time of stress. Anaerobic respiration does not have as much waste as aerobic respiration, but this is not the reason why anaerobic respiration is done. Anaerobic respiration does not have anything to do with genetic reproduction. Anaerobic respiration is not done during periods of rest. Anaerobic respiration produces a grand total of 2 ATP and involves two steps: Glycolysis Glucose is broken down into pyruvate. Fermentation Pyruvate is broken down into ethanol or lactic acid. Glycolysis intermediates produced to allow glycolysis to begin again immediately. The correct answer is (B).

6 Question No. 6 of What is the process in which complex molecules are broken down and release energy? Question #06 (A) Anabolism (B) Dehydration synthesis (C) Catabolism (D) Respiration (E) None of the above Anabolism is the process where macromolecules are put together and require energy. Dehydration synthesis is the process where macromolecules are put together. C. Correct! Catabolism is the process where macromolecules are broken down and release energy. Respiration is the process of exchanging carbon dioxide and oxygen. The correct answer is found above. Anabolism Conditions: excess resources, feeding, and resting. Activities: creation of new structures and storage of nutrients. Role of ATP: requires energy. Catabolism Conditions: deficient resources, fasting, and stress. Activities: destruction of old structures and breakdown of food. Role of ATP: releases energy. The correct answer is (C).

7 Question No. 7 of What is the transfer of energy from one system to another? Question #07 (A) Bioenergetics (B) Work (C) Energy (D) Thermodynamics (E) None of the above Bioenergetics is the study of energy transformation in biological systems. B. Correct! Work is the transfer of energy from one system to another. Energy is the ability to do work or supply heat. Thermodynamics is the study of energy transformation in the universe. The answer is found in the choices above. Thermodynamics 1 st Law: energy cannot be created nor destroyed. 2 nd Law: work cannot be completely efficient. Free Energy: spontaneous reactions occur automatically. Non-spontaneous reactions require input of energy. Bioenergetics is the study of energy transformation in biological systems. Energy is the ability to do work or supply heat. Work is the transfer of energy from one system to another. The correct answer is (B).

8 Question No. 8 of Reactions that require energy are called reactions? Question #08 (A) Catabolic (B) Exergonic (C) Endergonic (D) Thermodynamic (E) All of the above Catabolic reactions are those that release energy. Exergonic reactions release energy. C. Correct! Endergonic reactions require energy. Thermodynamics is the study of energy transformation in the universe. Not all of the choices listed are correct. Anabolism Conditions: excess resources, feeding, and resting. Activities: creation of new structures and storage of nutrients. Role of ATP: requires energy are endergonic Catabolism Conditions: deficient resources, fasting, and stress. Activities: destruction of old structures and breakdown of food. Role of ATP: releases energy and are exergonic The correct answer is (C).

9 Question No. 9 of Which reaction involves the losing of electrons? Question #09 (A) Oxidation (B) Reduction (C) Hydrolysis (D) Dehydration synthesis (E) None of the above A. Correct! Oxidation is the losing of electrons. Reduction is the gaining of electrons. Hydrolysis is the process of splitting water and breaking apart organic molecules. Dehydration synthesis is the process of putting together organic molecules. The answer is listed in the one above. Redox Reactions: Redox reactions allow transportation of electrons. There is reduction, which is the gaining of electron or hydrogen and oxidation, which is the losing of electron or hydrogen. Coupling: Coupling is used in metabolism to run unfavorable reactions. Usually an energyreleasing reaction, such as a redox reaction, is coupled to ATP production. The correct answer is (A).

10 Question No. 10 of Which process involves an organic molecule as the final electron acceptor? Question #10 (A) (B) (C) (D) (E) Glycolysis Fermentation Electron transport chain Krebs cycle All of the above Glycolysis does not have an organic molecule as the final electron acceptor. B. Correct! Fermentation involves pyruvate being broken into ethanol or lactic acid, and they are the final electron acceptor. ETC does not have an organic molecule as the final electron acceptor. Krebs cycle does not have an organic molecule as the final electron acceptor. Not all of these answers are correct. Anaerobic respiration produces a grand total of 2 ATP and involves two steps: Glycolysis Glucose is broken down into pyruvate. Fermentation Pyruvate is broken down into ethanol or lactic acid. Glycolysis intermediates produced to allow glycolysis to begin again immediately. The correct answer is (B).

Chapter 7 Cellular Respiration and Fermentation*

Chapter 7 Cellular Respiration and Fermentation* Chapter 7 Cellular Respiration and Fermentation* *Lecture notes are to be used as a study guide only and do not represent the comprehensive information you will need to know for the exams. Life Is Work

More information

Cellular Respiration. Unit 5: Plants, Photosynthesis, and Cellular Respiration

Cellular Respiration. Unit 5: Plants, Photosynthesis, and Cellular Respiration Cellular Respiration Unit 5: Plants, Photosynthesis, and Cellular Respiration Overview! Organisms obtain energy (ATP) by breaking down (catabolic pathway, exergonic reaction) organic molecules (glucose)

More information

KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen. KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen. ! Cellular respiration makes ATP by breaking down sugars. Cellular respiration is aerobic, or requires oxygen.

More information

Cellular Respiration

Cellular Respiration Cellular Respiration Cellular respiration is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen In biology and chemistry, energy is referred to

More information

Structure of the Mitochondrion. Cell Respiration. Cellular Respiration. Catabolic Pathways. Photosynthesis vs. Cell Respiration ATP 10/14/2014

Structure of the Mitochondrion. Cell Respiration. Cellular Respiration. Catabolic Pathways. Photosynthesis vs. Cell Respiration ATP 10/14/2014 Structure of the Mitochondrion Cellular Respiration Chapter 9 Pgs. 163 183 Enclosed by a double membrane Outer membrane is smooth Inner, or cristae, membrane is folded - this divides the mitochondrion

More information

2/4/17. Cellular Metabolism. Metabolism. Cellular Metabolism. Consists of all of the chemical reactions that take place in a cell.

2/4/17. Cellular Metabolism. Metabolism. Cellular Metabolism. Consists of all of the chemical reactions that take place in a cell. Metabolism Cellular Metabolism Consists of all of the chemical reactions that take place in a cell. Can be reactions that break things down. (Catabolism) Or reactions that build things up. (Anabolism)

More information

MULTIPLE CHOICE QUESTIONS

MULTIPLE CHOICE QUESTIONS MULTIPLE CHOICE QUESTIONS 1. Which of the following statements concerning anabolic reactions is FALSE? A. They are generally endergonic. B. They usually require ATP. C. They are part of metabolism. D.

More information

3.7.1 Define cell respiration [Cell respiration is the controlled release of energy from organic compounds in cells to form ATP]

3.7.1 Define cell respiration [Cell respiration is the controlled release of energy from organic compounds in cells to form ATP] 3.7 Cell respiration ( Chapter 9 in Campbell's book) 3.7.1 Define cell respiration [Cell respiration is the controlled release of energy from organic compounds in cells to form ATP] Organic compounds store

More information

Cellular Respiration

Cellular Respiration Cellular Respiration The breakdown of glucose for cellular energy. happens in all living cells. is exothermic H atoms and e are removed from glucose (oxidization) and added to oxygen (reduction) excess

More information

3. Distinguish between aerobic and anaerobic in terms of cell respiration. Outline the general process of both.

3. Distinguish between aerobic and anaerobic in terms of cell respiration. Outline the general process of both. 3.7 Cell Respiration 1. Define cell respiration. Cell respiration is the controlled release of energy from organic molecules in cells to form ATP. 2. State the equation for the process of cell respiration.

More information

III. 6. Test. Respiració cel lular

III. 6. Test. Respiració cel lular III. 6. Test. Respiració cel lular Chapter Questions 1) What is the term for metabolic pathways that release stored energy by breaking down complex molecules? A) anabolic pathways B) catabolic pathways

More information

Chemical Energy. Valencia College

Chemical Energy. Valencia College 9 Pathways that Harvest Chemical Energy Valencia College 9 Pathways that Harvest Chemical Energy Chapter objectives: How Does Glucose Oxidation Release Chemical Energy? What Are the Aerobic Pathways of

More information

Cellular Respiration. How our body makes ATP, ENERGY!!

Cellular Respiration. How our body makes ATP, ENERGY!! Cellular Respiration How our body makes ATP, ENERGY!! Useable Energy Adenosine Tri-Phosphate (ATP) Adenosine Ribose Sugar 3 Phosphates November 27, 2017 November 27, 2017 Where do our cells get energy?

More information

ADP, ATP and Cellular Respiration

ADP, ATP and Cellular Respiration ADP, ATP and Cellular Respiration What Is ATP? Energy used by all Cells Adenosine Triphosphate Organic molecule containing highenergy Phosphate bonds Chemical Structure of ATP Adenine Base 3 Phosphates

More information

CELLULAR RESPIRATION. Xe - + Y X + Ye - CH 4 + 2O 2 CO 2 + H 2 O + energy. C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + energy SUMMARY EQUATION

CELLULAR RESPIRATION. Xe - + Y X + Ye - CH 4 + 2O 2 CO 2 + H 2 O + energy. C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + energy SUMMARY EQUATION AP BIOLOGY CELLULAR ENERGETICS ACTIVITY #2 NAME DATE HOUR CELLULAR RESPIRATION SUMMARY EQUATION STEPWISE REDOX REACTION Oxidation: Reduction: Xe - + Y X + Ye - CH 4 + 2O 2 CO 2 + H 2 O + energy C 6 H 12

More information

Chapter 9 Notes. Cellular Respiration and Fermentation

Chapter 9 Notes. Cellular Respiration and Fermentation Chapter 9 Notes Cellular Respiration and Fermentation Objectives Distinguish between fermentation and anaerobic respiration. Name the three stages of cellular respiration and state the region of the cell

More information

AP BIOLOGY Chapter 7 Cellular Respiration =

AP BIOLOGY Chapter 7 Cellular Respiration = 1 AP BIOLOGY Chapter 7 Cellular Respiration = Day 1 p. I. Overview A. Cellular Respiration 1. Respiration breathing, exchange of O 2 for CO 2 2. Cellular respiration aerobic harvesting of energy from food

More information

Cellular Respiration: Harvesting Chemical Energy

Cellular Respiration: Harvesting Chemical Energy Chapter 9 Cellular Respiration: Harvesting Chemical Energy PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with

More information

Chapter 9: Cellular Respiration: Harvesting Chemical Energy

Chapter 9: Cellular Respiration: Harvesting Chemical Energy AP Biology Reading Guide Name: Date: Period Chapter 9: Cellular Respiration: Harvesting Chemical Energy Overview: Before getting involved with the details of cellular respiration and photosynthesis, take

More information

Biology Kevin Dees. Chapter 9 Harvesting Chemical Energy: Cellular Respiration

Biology Kevin Dees. Chapter 9 Harvesting Chemical Energy: Cellular Respiration Chapter 9 Harvesting Chemical Energy: Cellular Respiration Life is Work!!! Biology Kevin Dees Catabolic pathways and ATP production Catabolic pathways release energy by breaking down large molecules into

More information

Cellular Metabolism 6/20/2015. Metabolism. Summary of Cellular Respiration. Consists of all the chemical reactions that take place in a cell!

Cellular Metabolism 6/20/2015. Metabolism. Summary of Cellular Respiration. Consists of all the chemical reactions that take place in a cell! Cellular Metabolism Biology 105 Lecture 6 Chapter 3 (pages 56-61) Metabolism Consists of all the chemical reactions that take place in a cell! Cellular metabolism: Aerobic cellular respiration requires

More information

CH 9 CELLULAR RESPIRATION. 9-1 Chemical Pathways 9-2 The Krebs Cycle and Electron Transport

CH 9 CELLULAR RESPIRATION. 9-1 Chemical Pathways 9-2 The Krebs Cycle and Electron Transport CH 9 CELLULAR RESPIRATION 9-1 Chemical Pathways 9-2 The Krebs Cycle and Electron Transport Chemical Energy and Food Energy source = food = ATP A calorie is the unit for the amount of energy needed to raise

More information

4. Which step shows a split of one molecule into two smaller molecules? a. 2. d. 5

4. Which step shows a split of one molecule into two smaller molecules? a. 2. d. 5 1. Which of the following statements about NAD + is false? a. NAD + is reduced to NADH during both glycolysis and the citric acid cycle. b. NAD + has more chemical energy than NADH. c. NAD + is reduced

More information

Cellular Metabolism 9/24/2013. Metabolism. Cellular Metabolism. Consists of all the chemical reactions that take place in a cell!

Cellular Metabolism 9/24/2013. Metabolism. Cellular Metabolism. Consists of all the chemical reactions that take place in a cell! Cellular Metabolism Biology 105 Lecture 6 Chapter 3 (pages 56-61) Metabolism Consists of all the chemical reactions that take place in a cell! Cellular Metabolism Aerobic cellular respiration requires

More information

Cellular Respiration Checkup Quiz. 1. Of the following products, which is produced by both anaerobic respiration and aerobic respiration in humans?

Cellular Respiration Checkup Quiz. 1. Of the following products, which is produced by both anaerobic respiration and aerobic respiration in humans? 1. Of the following products, which is produced by both anaerobic respiration and aerobic respiration in humans? I. Pyruvate II. III. ATP Lactate A. I only B. I and II only C. I, II and III D. II and III

More information

How Cells Release Chemical Energy. Chapter 7

How Cells Release Chemical Energy. Chapter 7 How Cells Release Chemical Energy Chapter 7 7.1 Overview of Carbohydrate Breakdown Pathways All organisms (including photoautotrophs) convert chemical energy of organic compounds to chemical energy of

More information

Cellular Metabolism. Biology 105 Lecture 6 Chapter 3 (pages 56-61)

Cellular Metabolism. Biology 105 Lecture 6 Chapter 3 (pages 56-61) Cellular Metabolism Biology 105 Lecture 6 Chapter 3 (pages 56-61) Metabolism Consists of all the chemical reactions that take place in a cell! Cellular Metabolism Aerobic cellular respiration requires

More information

Chapter 5. Microbial Metabolism

Chapter 5. Microbial Metabolism Chapter 5 Microbial Metabolism Metabolism Collection of controlled biochemical reactions that take place within a microbe Ultimate function of metabolism is to reproduce the organism Metabolic Processes

More information

Biology Chapter-7 Cellular Respiration

Biology Chapter-7 Cellular Respiration Biology-1406 Chapter-7 Cellular Respiration Energy is stored in Chemicals Catabolism- the breaking down of complex molecules, such as glucose, to release their stored energy. Catabolism may or may not

More information

Cellular Respiration. Cellular Respiration. C 6 H 12 O 6 + 6O > 6CO 2 + 6H energy. Heat + ATP. You need to know this!

Cellular Respiration. Cellular Respiration. C 6 H 12 O 6 + 6O > 6CO 2 + 6H energy. Heat + ATP. You need to know this! Cellular Respiration LISA Biology Cellular Respiration C 6 H 12 O 6 + 6O 2 - - - - - > 6CO 2 + 6H 2 0 + energy You need to know this! Heat + ATP 1 Did that equation look familiar? * The equation for cellular

More information

Respiration 30/04/2013. Dr.M.R.Vaezi K., Hakim Sabzevari University

Respiration 30/04/2013. Dr.M.R.Vaezi K., Hakim Sabzevari University Respiration Metabolism - the sum of all the chemical reactions that occur in the body. It is comprised of: anabolism synthesis of molecules, requires input of energy catabolism break down of molecules,

More information

Respiration. Respiration. How Cells Harvest Energy. Chapter 7

Respiration. Respiration. How Cells Harvest Energy. Chapter 7 How Cells Harvest Energy Chapter 7 Respiration Organisms can be classified based on how they obtain energy: autotrophs: are able to produce their own organic molecules through photosynthesis heterotrophs:

More information

Cellular Pathways That Harvest Chemical Energy. Cellular Pathways That Harvest Chemical Energy. Cellular Pathways In General

Cellular Pathways That Harvest Chemical Energy. Cellular Pathways That Harvest Chemical Energy. Cellular Pathways In General Cellular Pathways That Harvest Chemical Energy A. Obtaining Energy and Electrons from Glucose Lecture Series 12 Cellular Pathways That Harvest Chemical Energy B. An Overview: Releasing Energy from Glucose

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Respiration Practice Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following statements describes NAD+? A) NAD+ can donate

More information

Releasing Chemical Energy

Releasing Chemical Energy Releasing Chemical Energy Ø Energy From Carbohydrates Ø Aerobic Respiration/ Stages Ø Fermentation Ø Food as a Source of Energy How Do Cells Access the Chemical Energy in Carbohydrayes? Aerobic Respiration

More information

Section 9 2 The Krebs Cycle and Electron Transport (pages )

Section 9 2 The Krebs Cycle and Electron Transport (pages ) Section 9 2 The Krebs Cycle and Electron Transport (pages 226 232) This section describes what happens during the second stage of cellular respiration, called the Krebs cycle. It also explains how high-energy

More information

CELLULAR RESPIRATION. Chapter 7

CELLULAR RESPIRATION. Chapter 7 CELLULAR RESPIRATION Chapter 7 7.1 GLYCOLYSIS AND FERMENTATION If I have a $10.00 bill and a $10.00 check, which is better? ATP is like cash in the cell Glucose, NADH, FADH2 are like checks in a cell.

More information

Class XI Chapter 14 Respiration in Plants Biology. 1. It is a biochemical process. 1. It is a physiochemical process.

Class XI Chapter 14 Respiration in Plants Biology. 1. It is a biochemical process. 1. It is a physiochemical process. Question 1: Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs cycle (c) Aerobic respiration and Fermentation (a) Respiration and combustion Respiration Combustion 1. It is a

More information

Reading Assignments. A. Energy and Energy Conversions. Lecture Series 9 Cellular Pathways That Harvest Chemical Energy. gasoline) or elevated mass.

Reading Assignments. A. Energy and Energy Conversions. Lecture Series 9 Cellular Pathways That Harvest Chemical Energy. gasoline) or elevated mass. Lecture Series 9 Cellular Pathways That Harvest Chemical Energy Reading Assignments Review Chapter 3 Energy, Catalysis, & Biosynthesis Read Chapter 13 How Cells obtain Energy from Food Read Chapter 14

More information

Introduction. Living is work. To perform their many tasks, cells must bring in energy from outside sources.

Introduction. Living is work. To perform their many tasks, cells must bring in energy from outside sources. Introduction Living is work. To perform their many tasks, cells must bring in energy from outside sources. In most ecosystems, energy enters as sunlight. Light energy trapped in organic molecules is available

More information

Chapter 9 Cellular Respiration Overview: Life Is Work Living cells require energy from outside sources

Chapter 9 Cellular Respiration Overview: Life Is Work Living cells require energy from outside sources Chapter 9 Cellular Respiration Overview: Life Is Work Living cells require energy from outside sources Some animals, such as the giant panda, obtain energy by eating plants, and some animals feed on other

More information

Chapter 9: Cellular Respiration

Chapter 9: Cellular Respiration Chapter 9: Cellular Respiration Breaking down glucose a little at a time.. It s like turning a five pound bag of sugar into several tiny sugar packets worth of energy in the form of ATP. Remember the carbon

More information

Question 1: Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs cycle (c) Aerobic respiration and Fermentation (a) Respiration and combustion Respiration Combustion 1. It is a

More information

Cellular Respiration

Cellular Respiration Cellular Respiration 1. To perform cell work, cells require energy. a. A cell does three main kinds of work: i. Mechanical work, such as the beating of cilia, contraction of muscle cells, and movement

More information

Cellular Metabolism. Biol 105 Lecture 6 Read Chapter 3 (pages 63 69)

Cellular Metabolism. Biol 105 Lecture 6 Read Chapter 3 (pages 63 69) Cellular Metabolism Biol 105 Lecture 6 Read Chapter 3 (pages 63 69) Metabolism Consists of all of the chemical reactions that take place in a cell Metabolism Animation Breaking Down Glucose For Energy

More information

Cellular Respiration. Objectives

Cellular Respiration. Objectives Lecture 07 Objectives At the end of this series of lectures, you should be able to: Define terms. Compare the processes and locations of cellular respiration and photosynthesis. Explain how breathing and

More information

Cellular Respiration Notes. Biology - Mrs. Kaye

Cellular Respiration Notes. Biology - Mrs. Kaye Cellular Respiration Notes Biology - Mrs. Kaye Energy Transfer In cellular respiration, chemical energy is converted into usable energy which is converted into heat energy. ATP and ADP ATP acts as an energy

More information

How Cells Harvest Chemical Energy. Chapter 9

How Cells Harvest Chemical Energy. Chapter 9 How Cells Harvest Chemical Energy Chapter 9 Cellular Respiration Releasing energy (ATP) from glucose (chemical energy) in the presence of O 2 Energy flows Matter cycles True or False Plants only perform

More information

Name: Block: Date: PACKET #8 Unit 3: Energy Transfer, Part II: Cellular Respiration

Name: Block: Date: PACKET #8 Unit 3: Energy Transfer, Part II: Cellular Respiration Name: Block: Date: PACKET #8 Unit 3: Energy Transfer, Part II: Cellular Respiration Reading: BSCS Text chapters 4, 5, and 2.8. Objectives: By the conclusion of this unit the student will be able to: Topic

More information

Cellular Respiration Guided Notes

Cellular Respiration Guided Notes Respiration After you hear word 'respiration', you may now think about breathing. During breathing, the is entered with each inhale and is released with each exhale. You may have noticed that breathing

More information

7 Pathways That Harvest Chemical Energy

7 Pathways That Harvest Chemical Energy 7 Pathways That Harvest Chemical Energy Pathways That Harvest Chemical Energy How Does Glucose Oxidation Release Chemical Energy? What Are the Aerobic Pathways of Glucose Metabolism? How Is Energy Harvested

More information

Concept 9.1: Catabolic pathways yield energy by oxidizing organic fuels Several processes are central to cellular respiration and related pathways

Concept 9.1: Catabolic pathways yield energy by oxidizing organic fuels Several processes are central to cellular respiration and related pathways Overview: Life Is Work Living cells require energy from outside sources Some animals, such as the chimpanzee, obtain energy by eating plants, and some animals feed on other organisms that eat plants Energy

More information

How Did Energy-Releasing Pathways Evolve? (cont d.)

How Did Energy-Releasing Pathways Evolve? (cont d.) How Did Energy-Releasing Pathways Evolve? (cont d.) 7.1 How Do Cells Access the Chemical Energy in Sugars? In order to use the energy stored in sugars, cells must first transfer it to ATP The energy transfer

More information

Lesson Overview. Cellular Respiration: An Overview. 9.2 process of cell respiration

Lesson Overview. Cellular Respiration: An Overview. 9.2 process of cell respiration 9.2 process of cell respiration Glycolysis During glycolysis, glucose is broken down into 2 molecules of the 3-carbon molecule pyruvic acid. Pyruvic acid is a reactant in the Krebs cycle. ATP and NADH

More information

Chapter 5 Microbial Metabolism: The Chemical Crossroads of Life

Chapter 5 Microbial Metabolism: The Chemical Crossroads of Life Chapter 5 Microbial Metabolism: The Chemical Crossroads of Life Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. The Metabolism of Microbes metabolism all chemical

More information

Cellular Respiration

Cellular Respiration Cellular Respiration C 6 H 12 O 6 + 6O 2 -----> 6CO 2 + 6H 2 0 + energy (heat and ATP) 1. Energy Capacity to move or change matter Forms of energy are important to life include Chemical, radiant (heat

More information

Cellular Respiration and Fermentation

Cellular Respiration and Fermentation LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 9 Cellular Respiration and Fermentation

More information

Cellular Respiration

Cellular Respiration Cellular Respiration Overview Heterotrophs obtain glucose from plants and plant matter. The goal is to convert food energy (glucose) into chemical energy! (ATP) Why would we do this? The process by which

More information

Chapter 4: Cellular Metabolism. KEY CONCEPT Cellular respiration is an aerobic process with two main stages.

Chapter 4: Cellular Metabolism. KEY CONCEPT Cellular respiration is an aerobic process with two main stages. KEY CONCEPT Cellular respiration is an aerobic process with two main stages. Glycolysis is needed for cellular respiration. The products of glycolysis enter cellular respiration when oxygen is available.

More information

What is Respiration? The process of respiration is where organisms convert chemical energy into cellular energy, which is known as ATP. Adenine Ribose P P P Cellular Respiration high energy sugar low energy

More information

NOTES: Ch 9 Cellular Respiration: Harvesting Chemical Energy Part 1: The Overview

NOTES: Ch 9 Cellular Respiration: Harvesting Chemical Energy Part 1: The Overview NOTES: Ch 9 Cellular Respiration: Harvesting Chemical Energy Part 1: The Overview Overview: Life Is Work Living cells require energy from outside sources Some animals, such as the giant panda, obtain energy

More information

10/25/2010 CHAPTER 9 CELLULAR RESPIRATION. Life is Work. Types of cellular respiration. Catabolic pathways = oxidizing fuels

10/25/2010 CHAPTER 9 CELLULAR RESPIRATION. Life is Work. Types of cellular respiration. Catabolic pathways = oxidizing fuels CHAPTER 9 CELLULAR RESPIRATION Life is Work Living cells require transfusions of energy from outside sources to perform their many tasks: Chemical work Transport work Mechanical work Energy stored in the

More information

Cellular Respiration: Harvesting Chemical Energy CHAPTER 9

Cellular Respiration: Harvesting Chemical Energy CHAPTER 9 Cellular Respiration: Harvesting Chemical Energy CHAPTER 9 9.1 Metabolic pathways that release energy are exergonic and considered catabolic pathways. Fermentation: partial degradation of sugars that occurs

More information

Ch. 9 Cell Respiration. Title: Oct 15 3:24 PM (1 of 53)

Ch. 9 Cell Respiration. Title: Oct 15 3:24 PM (1 of 53) Ch. 9 Cell Respiration Title: Oct 15 3:24 PM (1 of 53) Essential question: How do cells use stored chemical energy in organic molecules and to generate ATP? Title: Oct 15 3:28 PM (2 of 53) Title: Oct 19

More information

Enzymes and Metabolism

Enzymes and Metabolism PowerPoint Lecture Slides prepared by Vince Austin, University of Kentucky Enzymes and Metabolism Human Anatomy & Physiology, Sixth Edition Elaine N. Marieb 1 Protein Macromolecules composed of combinations

More information

Marah Bitar. Bayan Abusheikha ... Anas Abu-Humaidan

Marah Bitar. Bayan Abusheikha ... Anas Abu-Humaidan 5 Marah Bitar Bayan Abusheikha... Anas Abu-Humaidan Bacterial Metabolism -Metabolism has two components, catabolism and anabolism. -Catabolism encompasses processes that harvest energy released from the

More information

Bio 103 Section A02 Summer 2003 Exam #2 Study Guide Dr. Largen

Bio 103 Section A02 Summer 2003 Exam #2 Study Guide Dr. Largen Chapter 4 - Cell Structure Bio 103 Section A02 Summer 2003 Exam #2 Study Guide Dr. Largen Microscopes provide windows to the world of the cell compare light versus electron microscopes illumination type

More information

Bell Work. b. is wrong because combining two glucose molecules requires energy, it does not release energy

Bell Work. b. is wrong because combining two glucose molecules requires energy, it does not release energy Bell Work How is energy made available to the cell to move large starch molecules across the cell membrane through the process of endocytosis? a. removing a phosphate from ATP b. combining two glucose

More information

9.1 Chemical Pathways ATP

9.1 Chemical Pathways ATP 9.1 Chemical Pathways ATP 2009-2010 Objectives Explain cellular respiration. Describe what happens during glycolysis. Describe what happens during fermentation. Where do we get energy? Energy is stored

More information

BIOLOGY - CLUTCH CH.9 - RESPIRATION.

BIOLOGY - CLUTCH CH.9 - RESPIRATION. !! www.clutchprep.com CONCEPT: REDOX REACTIONS Redox reaction a chemical reaction that involves the transfer of electrons from one atom to another Oxidation loss of electrons Reduction gain of electrons

More information

BIOLOGY 101. CHAPTER 9: Cellular Respiration - Fermentation: Life is Work

BIOLOGY 101. CHAPTER 9: Cellular Respiration - Fermentation: Life is Work BIOLOGY 101 CHAPTER 9: Cellular Respiration - Fermentation: Life is Work An Introduction to Metabolism: Energy of Life 8.3 ATP powers cellular work by coupling exergonic reactions to endergonic reactions

More information

Ch 9: Cellular Respiration

Ch 9: Cellular Respiration Ch 9: Cellular Respiration Cellular Respiration An overview Exergonic reactions and catabolic pathway Energy stored in bonds of food molecules is transferred to ATP Cellular respiration provides the energy

More information

3.2 Aerobic Respiration

3.2 Aerobic Respiration 3.2 Aerobic Respiration Aerobic Cellular Respiration Catabolic pathways Breaks down energy-rich compounds to make ATP Requires oxygen Occurs in different parts of the cell C 6 H 12 O 6 (s) + 6O 2 (g) 6CO

More information

Cellular Respiration and Fermentation

Cellular Respiration and Fermentation Cellular Respiration and Fermentation How do plants and animals obtain the glucose they need? Plants: Animals: Cellular Respiration the process that releases energy from food in the presence of oxygen

More information

Cellular Respiration. Biochemistry Part II 4/28/2014 1

Cellular Respiration. Biochemistry Part II 4/28/2014 1 Cellular Respiration Biochemistry Part II 4/28/2014 1 4/28/2014 2 The Mitochondria The mitochondria is a double membrane organelle Two membranes Outer membrane Inter membrane space Inner membrane Location

More information

Cellular Respiration Harvesting Chemical Energy ATP

Cellular Respiration Harvesting Chemical Energy ATP Cellular Respiration Harvesting Chemical Energy ATP 2009-2010 Ch.8.3 Section Objectives: Compare and contrast cellular respiration and fermentation. Explain how cells obtain energy from cellular respiration.

More information

9-1 Chemical Pathways

9-1 Chemical Pathways 2 of 39 Food serves as a source of raw materials for the cells in the body and as a source of energy. Animal Cells Animal Mitochondrion Plant Plant Cells 3 of 39 1 Both plant and animal cells carry out

More information

Chapter 9. Cellular Respiration: Harvesting Chemical Energy

Chapter 9. Cellular Respiration: Harvesting Chemical Energy Chapter 9 Cellular Respiration: Harvesting Chemical Energy Living cells require energy from outside sources Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O 2 and

More information

Cellular Respiration Harvesting Chemical Energy ATP

Cellular Respiration Harvesting Chemical Energy ATP Cellular Respiration Harvesting Chemical Energy ATP 2006-2007 What s the point? The point is to make ATP! ATP 2006-2007 Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats,

More information

Cellular Respiration

Cellular Respiration Cellular I can describe cellular respiration Cellular respiration is a series of metabolic pathways releasing energy from a foodstuff e.g. glucose. This yields energy in the form of ATP adenosine P i P

More information

Aerobic vs Anaerobic Respiration. 1. Glycolysis 2. Oxidation of Pyruvate and Krebs Cycle

Aerobic vs Anaerobic Respiration. 1. Glycolysis 2. Oxidation of Pyruvate and Krebs Cycle CELLULAR RESPIRATION Student Packet SUMMARY ALL LIVING SYSTEMS REQUIRE CONSTANT INPUT OF FREE ENERGY Cellular respiration is a catabolic pathway in which glucose and other organic fuels (such as starch,

More information

Cellular Respiration: Harvesting Chemical Energy

Cellular Respiration: Harvesting Chemical Energy Chapter 9 Cellular Respiration: Harvesting Chemical Energy PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with

More information

2) The molecule that functions as the reducing agent (electron donor) in a redox or oxidationreduction

2) The molecule that functions as the reducing agent (electron donor) in a redox or oxidationreduction Campbell Biology in Focus (Urry) Chapter 7 Cellular Respiration and Fermentation 7.1 Multiple-Choice Questions 1) What is the term for metabolic pathways that release stored energy by breaking down complex

More information

Chapter 7 How Cells Release Chemical Energy

Chapter 7 How Cells Release Chemical Energy Chapter 7 How Cells Release Chemical Energy 7.1 Mighty Mitochondria More than forty disorders related to defective mitochondria are known (such as Friedreich s ataxia); many of those afflicted die young

More information

Harvesting energy: photosynthesis & cellular respiration

Harvesting energy: photosynthesis & cellular respiration Harvesting energy: photosynthesis & cellular respiration Learning Objectives Know the relationship between photosynthesis & cellular respiration Know the formulae of the chemical reactions for photosynthesis

More information

Section B: The Process of Cellular Respiration

Section B: The Process of Cellular Respiration CHAPTER 9 CELLULAR RESPIRATION: HARVESTING CHEMICAL ENERGY Section B: The Process of Cellular Respiration 1. Respiration involves glycolysis, the Krebs cycle, and electron transport: an overview 2. Glycolysis

More information

Respiration. Respiration. Respiration. How Cells Harvest Energy. Chapter 7

Respiration. Respiration. Respiration. How Cells Harvest Energy. Chapter 7 How Cells Harvest Energy Chapter 7 Organisms can be classified based on how they obtain energy: autotrophs: are able to produce their own organic molecules through photosynthesis heterotrophs: live on

More information

CELLULAR RESPIRATION REVIEW MULTIPLE CHOICE. Circle ALL that are TRUE. There may be MORE THAN one correct answer. 1. is the first step in cellular res

CELLULAR RESPIRATION REVIEW MULTIPLE CHOICE. Circle ALL that are TRUE. There may be MORE THAN one correct answer. 1. is the first step in cellular res CELLULAR RESPIRATION REVIEW MULTIPLE CHOICE. Circle ALL that are TRUE. There may be MORE THAN one correct answer. 1. is the first step in cellular respiration that begins releasing energy stored in glucose.

More information

Biology 30 Structure & Function of Cells (Part 2) Bioenergetics: Energy: Potential energy: Examples: Kinetic energy. Examples:

Biology 30 Structure & Function of Cells (Part 2) Bioenergetics: Energy: Potential energy: Examples: Kinetic energy. Examples: Biology 30 Structure & Function of Cells (Part 2) Bioenergetics: Energy: Potential energy: Examples: Kinetic energy Examples: Energy can be transformed: Thermodynamics: First law of Thermodynamics: Second

More information

Energy Transformation: Cellular Respiration Outline 1. Sources of cellular ATP 2. Turning chemical energy of covalent bonds between C-C into energy

Energy Transformation: Cellular Respiration Outline 1. Sources of cellular ATP 2. Turning chemical energy of covalent bonds between C-C into energy Energy Transformation: Cellular Respiration Outline 1. Sources of cellular ATP 2. Turning chemical energy of covalent bonds between C-C into energy for cellular work (ATP) 3. Importance of electrons and

More information

Cellular respiration and fermentation 04/18/2016 BI102

Cellular respiration and fermentation 04/18/2016 BI102 Cellular respiration and fermentation 04/18/2016 BI102 Announcements Exam 1 after lecture Don t forget to do the online assignments every week! Quiz 2 and lab 2 review Cellular Respiration Cells require

More information

Cellular Respira,on. Topic 3.7 and 3.8

Cellular Respira,on. Topic 3.7 and 3.8 Cellular Respira,on Topic 3.7 and 3.8 Defini,on of cellular respira,on Controlled release of energy from organic compounds to produce ATP Cells break down organic compounds by SLOW oxida,on Chemical energy

More information

Chapter 9 Cellular Respiration. Copyright Pearson Prentice Hall

Chapter 9 Cellular Respiration. Copyright Pearson Prentice Hall Chapter 9 Cellular Respiration Copyright Pearson Prentice Hall 9-1 Chemical Pathways Both plant and animal cells carry out the final stages of cellular respiration in the mitochondria. Animal Cells Animal

More information

Cellular Respiration. Chapter 9

Cellular Respiration. Chapter 9 Cellular Respiration Chapter 9 1.A)Explain where organisms get the energy needed for life processes. Organisms get the energy they need from food. Energy stored in food is expressed as calories. Calorie

More information

7 Cellular Respiration and Fermentation

7 Cellular Respiration and Fermentation CAMPBELL BIOLOGY IN FOCUS URRY CAIN WASSERMAN MINORSKY REECE 7 Cellular Respiration and Fermentation Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge, Simon Fraser University SECOND EDITION

More information

Independent Study Guide Metabolism I. Principles of metabolism (section 6.1) a. Cells must: (figure 6.1) i. Synthesize new components

Independent Study Guide Metabolism I. Principles of metabolism (section 6.1) a. Cells must: (figure 6.1) i. Synthesize new components Independent Study Guide Metabolism I. Principles of metabolism (section 6.1) a. Cells must: (figure 6.1) i. Synthesize new components (anabolism/biosynthesis) ii. Harvest energy and convert it to a usable

More information

Cellular Respira,on. Topic 3.7 and 3.8

Cellular Respira,on. Topic 3.7 and 3.8 Cellular Respira,on Topic 3.7 and 3.8 Defini,on of cellular respira,on Controlled release of energy from organic compounds to produce ATP Chemical energy is stored in covalent bonds Cells break down organic

More information

Energy is the capacity to perform work

Energy is the capacity to perform work Energy is the capacity to perform work Two forms Kinetic Heat Light Potential Chemical energy 1 Roller Coaster Energy Food, ATP, Chemical Energy 2 He s using free energy stored in bonds of food molecules

More information

9.2 The Process of Cellular Respiration

9.2 The Process of Cellular Respiration 9.2 The Process of Cellular Respiration Oxygen Carbon 2 2 Dioxide 34 Water Glycolysis Glycolysis is the first stage of cellular respiration. During glycolysis, glucose is broken down into 2 molecules of

More information

Cellular Respiration: Obtaining Energy from Food

Cellular Respiration: Obtaining Energy from Food Chapter 6 Cellular Respiration: Obtaining Energy from Food Lectures by Chris C. Romero, updated by Edward J. Zalisko PowerPoint Lectures for Campbell Essential Biology, Fourth Edition Eric Simon, Jane

More information