Cellular Respiration. Chapter 9

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Cellular Respiration. Chapter 9"

Transcription

1 Cellular Respiration Chapter 9

2 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 amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius calories = 1 kilocalorie, or Calorie. Cells use all sorts of molecules for food: fats, proteins, and carbohydrates. each of these molecules varies because their chemical structures therefore their energy-storing bonds, differ. Cells break down food molecules gradually use the energy stored in the chemical bonds to produce compounds ATP powers activities of the cell

3 1B)Define cellular respiration. 1C)What is the equation for cellular respiration? Cellular Respiration process in which cells form ATP by breaking down organic compounds Equation for cellular Respiration: 6 O 2 + C 6 H 12 O 6 6 CO H 2 O + Energy Oxygen + Glucose Carbon dioxide + Water + Energy Why does it have to be broken down this way? cells have to release the chemical energy in food molecules (like glucose) gradually otherwise most of the energy would be lost in the form of heat and light.

4 1D)What does aerobic and anaerobic mean? Anaerobic no oxygen Aerobic uses Oxygen!

5 1E) Explain the structure and function of the mitochondrion parts. Outer membrane Allows ions, nutrient molecules, ADP and ATP to pass through Inner Membrane Allows O 2, H 2 O and CO 2 to pass through freely Contained with in the inner membrane: ETC Matrix ATP Synthase Transport proteins Cristae- folds that increase the surface area Contains the enzymes for the Krebs Cycle Contains the H gradient for ATP creation

6 2A) What happens during the process of glycolysis? Glycolysis (glucose oxidized to produce pyruvic acid) (LEO) 1. occurs in cytoplasm 2. 2 ATP (activation energy) used to form new 6C compound 3. 6C compound split into 2 PGAL (3C) 4. PGAL oxidized 4H removed - joined to coenzyme NAD+ - 2 NADH + 2H formed 5. 4 phosphates removed - joined to ADP to form 4 ATP now have 2 pyruvic acids (3C) C 3 H 4 O 3 (Molecular formula)` 6. net yield of 2 ATP

7 2B)Explain the differences between lactic acid and alcoholic fermentation. Fermentation (further convert pyruvic acid) (NO OXYGEN) 1. Lactic acid fermentation (occurs in muscle cells) (certain bacteria) a) strenuous exercise uses up O 2 faster than can be resupplied and H accumulates (NAD not available for glycolysis) b) pyruvic acid becomes electron (H) acceptor and is converted to lactic acid (NADH oxidized) c) regenerates NAD+ so glycolysis can continue d) lactic acid accumulates in muscles increased acidity causes less contraction, fatigue, pain, cramps ( increase acid, decrease muscle contractions) diffuses into blood to liver - converted to pyruvic acid when O 2 available

8 2B)Explain the differences between lactic acid and alcoholic fermentation. 2. Alcoholic fermentation Examples: beer, wine, bread Organisms: bacteria, yeast a. CO 2 removed from pyruvic acid and H added from NADH + H to form ethyl alcohol (C 2 H 5 OH) b. NAD+ regenerated for glycolysis c. alcohol has much energy (can be used as a fuel)

9 2C.)Identify and explain the pathways the body uses to release energy during exercise. How does the body produce ATP during different stages of exercise? For short, quick bursts of energy the body uses ATP already in muscles as well as ATP made by lactic acid fermentation. extra oxygen is required to get rid of the lactic acid produced. For exercise longer than about 90 seconds cellular respiration is the only way to continue generating a supply of ATP. intense exercise, a person will huff and puff for several minutes in order to pay back the built-up oxygen debt and clear the lactic acid from the body. body stores energy in the form of the glycogen (carbohydrate) glycogen stores enough to last for 15 to 20 minutes of activity. After that, the body breaks down other stored molecules, like fats for energy.

10 Aerobic Respiration Aerobic Respiration Requires oxygen Occurs in the mitochondria Steps of Aerobic Respiration: 1. Glycolysis 2. Forming acetyl CoA 3. Krebs cycle 4. ETC (Electron Transport Chain)

11 3A)Explain how acetyl CoA is formed. Forming Acetyl Coenzyme A 1. pyruvic acid enters mitochondrial matrix life/29543-assignment-discoverycellular-respiration-video.htm 2. CO 2 removed from 3C pyruvic acid 2C acetyl group 3. Coenzyme A joins to 2C acetyl forming acetyl CoA (oxidized) 4. 2H released and NAD+ reduced to NADH TOTAL For 2 pyruvic acids or 1 glucose molecule: 2 CO 2 removed 4H removed(2 NADH formed + 2H) 2 H 2 O used

12 3B.)Describe the stages and the products of the Krebs cycle. Krebs Cycle: Citric Acid Cycle 1. 2C acetyl CoA attaches to 4C oxaloacetic acid to produce citric acid (6C-C 6 H 8 O 7 )- CoA released 2. During 1 cycle: (1 pyruvic acid) a. 2 CO 2 removed b. series of oxidations removes 8H (6H form 3NADH + 3H and 2H form 1FADH 2 ) c. 1 ATP formed d. 2 H 2 O used TOTAL 2 turns of cycle because there are 2 pyruvic acids or 1 glucose molecule so: 4 CO 2 removed 16H removed (12 H form 6 NADH + 6H and 4H form 2FADH 2 ) 2 ATP formed 4 H 2 O used

13 3C)Explain how high energy electrons are used by the electron transport chain. Electron Transport Chain (on cristae) animation 1. much energy in electrons held by 10 NADH 2 and 2 FADH 2 2. electrons from 24H move down series of coenzymes and energy from them produces 34 ATP each pair of H from NADH yields 3 ATP (10 NADH = 30) each pair from FADH 2 yields 2 ATP (2 FADH 2 = 4) 3. role of oxygen is final acceptor of electrons (chain keeps operating and forming ATP) a. also accepts protons (H+) O 2 + 4e- + 4H+ 6O e- + 24H+ 2H 2 O 12H 2 O 6H 2 O used in previous steps so net of 6H 2 O

14 3D)How many molecules of ATP are produced in the entire breakdown of glucose? Where is the ENERGY made? Glycolysis = 4 ATP Kreb= 2 ATP ETC= 34 ATP 40 ATP Formed (2 used in Glycolysis) 38 ATP net yield H01_CellularRespiration_Web/index.html list=rdsblpt7syh6s

15 3E) Compare and contrast the difference between aerobic and anaerobic respiration Anaerobic No O2 required Occurs in the cytoplasm only Called Fermentation Only produces Max. 2 ATP Less efficient Produces alcohol using Prokaryotes Produces lactic acid in eukaryotes Similarities Break down glucose Go through glycolysis Requies glucose Produces Energy involves pyruvic acid Both continuous process Makes at least 2 ATP Use 2 ATP Aerobic Requires O2 Occurs in cytoplasm and mitochondria Steps: forming acetyl coa, Krebs cycle, and ETC Produces 38ATP Efficient Performed by Eukaryotes

16 3F) What is the relationship between photosynthesis and cellular respiration? Photosynthesis products of P.S. endergonic occurs in chloroplasts stores energy light energy is converted into chemical energy in bonds of carbohydrates occurs in the light autotrophs do it Cellular Respiration are reactants of cell respiration Exergonic occurs in mitochondria releases energy chemical energy from carbohydrate bonds is released and used to make ATP occurs in light and dark autotrophs and heterotrophs do it

17

Cell Respiration Ch 7. Both autotrophs and heterotrophs use cellular respiration to make CO2 and water from

Cell Respiration Ch 7. Both autotrophs and heterotrophs use cellular respiration to make CO2 and water from Cell Respiration Ch 7 Objectives: Identify the 2 major steps of cellular respiration Describe the major events in glycolysis Compare lactic acid fermentation with alcoholic fermentation Calculate the efficiency

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

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

Food serves as a source of raw materials for the cells in the body and as a source of energy.

Food serves as a source of raw materials for the cells in the body and as a source of energy. 9-1 Chemical Pathways 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 1 of 39 Both plant and animal cells

More information

9-1 Chemical Pathways Interactive pgs

9-1 Chemical Pathways Interactive pgs Interactive pgs. 221-225 1 of 39 9-1 Chemical Pathways 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

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

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

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

Releasing Food Energy

Releasing Food Energy Releasing Food Energy All food is broken down by the body into small molecules through digestion. By the time food reaches your, bloodstream it has been broken down into nutrient rich molecules that can

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 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

Chapter 9 Cellular Respiration

Chapter 9 Cellular Respiration Chapter 9 Cellular Respiration Biology and Society: Marathoners versus Sprinters Sprinters do not usually compete at short and long distances. Natural differences in the muscles of these athletes favor

More information

Copyrighted by Amy Brown Science Stuff. Cellular Respiration Let s get energized!

Copyrighted by Amy Brown Science Stuff. Cellular Respiration Let s get energized! Copyrighted by Amy Brown Science Stuff Cellular Respiration Let s get energized! A. Food provides living things with the: chemical building blocks they need to grow and reproduce. C. Food serves as a source

More information

3/28/17. Cellular Respiration. Chapter 9: Cellular Respiration & Fermentation. Chapter 9: Cellular Respiration & Fermentation

3/28/17. Cellular Respiration. Chapter 9: Cellular Respiration & Fermentation. Chapter 9: Cellular Respiration & Fermentation Chapter 9: Cellular Respiration & Fermentation SE C TION 1: C E LLULAR RE SP IRATION: AN OVERVIEW As we learned last chapter, energy from the sun is transformed into different forms. In this chapter you

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

CHAPTER 6 CELLULAR RESPIRATION

CHAPTER 6 CELLULAR RESPIRATION CHAPTER 6 CELLULAR RESPIRATION Chemical Energy In Food Purpose of food: Source of raw materials used to make new molecules Source of energy calorie the amount of energy needed to raise the temperature

More information

What s the point? The point is to make ATP! ATP

What s the point? The point is to make ATP! ATP ATP Chapter 8 What s the point? The point is to make ATP! ATP Flows into an ecosystem as sunlight and leaves as heat Energy is stored in organic compounds Carbohydrates, lipids, proteins Heterotrophs eat

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

How Cells Harvest Energy. Chapter 7. Respiration

How Cells Harvest Energy. Chapter 7. Respiration How Cells Harvest Energy Chapter 7 Respiration Organisms classified on how they obtain energy: autotrophs: produce their own organic molecules through photosynthesis heterotrophs: live on organic compounds

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

Cell Respiration - 1

Cell Respiration - 1 Cell Respiration - 1 All cells must do work to stay alive and maintain their cellular environment. The energy needed for cell work comes from the bonds of ATP. Cells obtain their ATP by oxidizing organic

More information

Biology Ch 9 Cellular Respiration & Fermentation ( )

Biology Ch 9 Cellular Respiration & Fermentation ( ) Name Class Date Biology Ch 9 Cellular Respiration & Fermentation (9.1-9.2) For Questions 1 10, complete each statement by writing the correct word or words. 1. A calorie is a unit of. 2. The Calorie used

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

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. April 9, 2013 Mr. Alvarez

Cellular Respiration. April 9, 2013 Mr. Alvarez Cellular Respiration April 9, 2013 Mr. Alvarez Do Now: Answer on a sheet of Loose-leaf 1) What is the equation for Photosynthesis 2) Explain how plants (leaves) regulate water loss use term negative feedback

More information

Metabolism. Chapter 5. Catabolism Drives Anabolism 8/29/11. Complete Catabolism of Glucose

Metabolism. Chapter 5. Catabolism Drives Anabolism 8/29/11. Complete Catabolism of Glucose 8/29/11 Metabolism Chapter 5 All of the reactions in the body that require energy transfer. Can be divided into: Cell Respiration and Metabolism Anabolism: requires the input of energy to synthesize large

More information

How Cells Release Chemical Energy Cellular Respiration

How Cells Release Chemical Energy Cellular Respiration How Cells Release Chemical Energy Cellular Respiration Overview of Cellular Respiration HO double membrane outer membrane inner membrane CO matrix Produces molecules Requires oxygen Releases carbon dioxide

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

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

How Cells Release Chemical Energy. Chapter 8

How Cells Release Chemical Energy. Chapter 8 How Cells Release Chemical Energy Chapter 8 Impacts, Issues: When Mitochondria Spin Their Wheels More than forty disorders related to defective mitochondria are known (such as Friedreich s ataxia); many

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

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

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

Chapter 6 Cellular Respiration: Obtaining Energy from Food Biology and Society: Marathoners versus Sprinters

Chapter 6 Cellular Respiration: Obtaining Energy from Food Biology and Society: Marathoners versus Sprinters Chapter 6 Cellular Respiration: Obtaining Energy from Food Biology and Society: Marathoners versus Sprinters Sprinters do not usually compete at short and long distances. Natural differences in the muscles

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

g) Cellular Respiration Higher Human Biology

g) Cellular Respiration Higher Human Biology g) Cellular Respiration Higher Human Biology What can you remember about respiration? 1. What is respiration? 2. What are the raw materials? 3. What are the products? 4. Where does it occur? 5. Why does

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

CELLULAR RESPIRATION GETTING ENERGY TO MAKE ATP

CELLULAR RESPIRATION GETTING ENERGY TO MAKE ATP ELLULAR RESPIRATION GETTING ENERGY TO MAKE ATP ELLULAR RESPIRATION ellular process by which mitochondria releases energy by breaking down food molecules (glucose or other organic molecules) to produce

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

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

Cell Respiration. Anaerobic & Aerobic Respiration

Cell Respiration. Anaerobic & Aerobic Respiration Cell Respiration Anaerobic & Aerobic Respiration Understandings/Objectives 2.8.U1: Cell respiration is the controlled release of energy from organic compounds to produce ATP. Define cell respiration State

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

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

Chapter 9. Cellular Respiration and Fermentation

Chapter 9. Cellular Respiration and Fermentation Chapter 9 Cellular Respiration and Fermentation Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O 2 and organic molecules, which are used in cellular respiration

More information

Energy is stored in the form of ATP!! ADP after ATP is broken down

Energy is stored in the form of ATP!! ADP after ATP is broken down Cellular Respiration Cellular respiration is the process in which plants and animals convert FOOD into ENERGY (ATP!) in their cells. This occurs in the Mitochondria! Energy is stored in the form of ATP!!

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

Complete breakdown of Glucose: + Light + 6 H 2 O = C 6 H 12 O 6 6 CO O 2. + Energy = 6 CO 2 C 6 H 12 O 6. What is Glucose Metabolism?

Complete breakdown of Glucose: + Light + 6 H 2 O = C 6 H 12 O 6 6 CO O 2. + Energy = 6 CO 2 C 6 H 12 O 6. What is Glucose Metabolism? Chapter 8: Harvesting Energy: Glycolysis and Cellular Respiration What is Metabolism? Answer: The breakdown of glucose to release energy from its chemical bonds Photosynthesis: 6 CO 2 Carbon Dioxide +

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

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

2. What are the products of cellular respiration? Include all forms of energy that are products.

2. What are the products of cellular respiration? Include all forms of energy that are products. Name Per Cellular Respiration An Overview Why Respire Anyhoo? Because bucko all cells need usable chemical energy to do work. The methods cells use to convert glucose into ATP vary depending on the availability

More information

Energy Flow. Chapter 7. Cellular Respiration: Overview. Cellular Respiration. Cellular Respiration. Cellular Respiration occurs in three stages

Energy Flow. Chapter 7. Cellular Respiration: Overview. Cellular Respiration. Cellular Respiration. Cellular Respiration occurs in three stages Energy Flow Chapter 7 Cellular Respiration hotosynthesis uses solar energy to produce glucose and O from CO and H O Cellular respiration makes and consumes O during the oxidation of glucose to CO and H

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

Review. Respiration. Glycolysis. Glycolysis is the decomposition (lysis) of glucose (glyco) to pyruvate (or pyruvic acid).

Review. Respiration. Glycolysis. Glycolysis is the decomposition (lysis) of glucose (glyco) to pyruvate (or pyruvic acid). Review Photosynthesis is the process of incorporating energy from light into energy-rich molecules like glucose. Respiration is the opposite process extracting that stored energy from glucose to form ATP

More information

Cellular Respiration

Cellular Respiration ellular Respiration 1 ellular Respiration A catabolic, exergonic, oxygen (O 2 ) requiring process that uses energy extracted from macromolecules (glucose) to produce energy (ATP) and water (H 2 O). 6 H

More information

Cellular Respiration: Harvesting Chemical Energy

Cellular Respiration: Harvesting Chemical Energy Chapter 9 Cellular Respiration: Harvesting Chemical Energy You should be able to: 1. Explain how redox reactions are involved in energy exchanges. Name and describe the three stages of cellular respiration;

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

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

How Cells Harvest Chemical Energy

How Cells Harvest Chemical Energy How Cells Harvest Chemical Energy Chapter 6 Introduction: How Is a Marathoner Different from a Sprinter? Individuals inherit various percentages of the two main types of muscle fibers, slow and fast The

More information

Ch. 9 Cellular Respiration Stage 2 & 3: Oxidation of Pyruvate Krebs Cycle

Ch. 9 Cellular Respiration Stage 2 & 3: Oxidation of Pyruvate Krebs Cycle Ch. 9 Cellular Respiration Stage 2 & 3: Oxidation of Pyruvate Krebs Cycle 2006-2007 Glycolysis is only the start Glycolysis glucose pyruvate 6C Pyruvate has more energy to yield 3 more C to strip off (to

More information

Cellular Respiration: Harvesting Chemical Energy Chapter 9

Cellular Respiration: Harvesting Chemical Energy Chapter 9 Cellular Respiration: Harvesting Chemical Energy Chapter 9 Assemble polymers, pump substances across membranes, move and reproduce The giant panda Obtains energy for its cells by eating plants which get

More information

CH 7: Cell Respiration and Fermentation Overview. Concept 7.1: Catabolic pathways yield energy by oxidizing organic fuels

CH 7: Cell Respiration and Fermentation Overview. Concept 7.1: Catabolic pathways yield energy by oxidizing organic fuels CH 7: Cell Respiration and Fermentation Overview Living cells require energy from outside sources Some animals obtain energy by eating plants, and some animals feed on other organisms Energy flows into

More information

Cellular Respiration. Biology Standard B-3.2

Cellular Respiration. Biology Standard B-3.2 Cellular Respiration Biology Standard B-3.2 Warm-UP p. 100 Study for quiz on ATP and Photosynthesis. Agenda: Quiz Cellular Respiration Notes Cellular Respiration Lab Cellular respiration is a process that

More information

ATP ATP. Cellular Respiration Harvesting Chemical Energy. The point is to make ATP!

ATP ATP. Cellular Respiration Harvesting Chemical Energy. The point is to make ATP! ellular Respiration Harvesting hemical Energy 1 The point is to make! 2 Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats, proteins Heterotrophs eat these organic molecules

More information

Name: Date: Per: Enzymes Review & Using text to understand ATP & Cellular Respiration

Name: Date: Per: Enzymes Review & Using text to understand ATP & Cellular Respiration Name: Date: Per: Enzymes Review & Using text to understand ATP & Cellular Respiration Read this: Digestive enzymes are protein-based biological catalysts that play important roles in our lives. They help

More information

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 6 How Cells Harvest Chemical Energy. 6.1 Multiple-Choice Questions

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 6 How Cells Harvest Chemical Energy. 6.1 Multiple-Choice Questions Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 6 How Cells Harvest Chemical Energy 6.1 Multiple-Choice Questions 1) Which of the following statements regarding photosynthesis and

More information

ATP. Principles of Energy Harvest. Chapter 9~ The point is to make ATP! Cellular Respiration: Harvesting Chemical Energy. What s the point?

ATP. Principles of Energy Harvest. Chapter 9~ The point is to make ATP! Cellular Respiration: Harvesting Chemical Energy. What s the point? Chapter 9~ Cellular Respiration: Harvesting Chemical Energy What s the point? The point is to make! 2006-2007 Principles of Energy Harvest Catabolic pathway Fermentation Cellular Respiration C6H126 + 62

More information

Chapter 8 Mitochondria and Cellular Respiration

Chapter 8 Mitochondria and Cellular Respiration Chapter 8 Mitochondria and Cellular Respiration Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water. The energy released is trapped in the form of

More information

Describe the roles of calcium ions and ATP in the contraction of a myofibril

Describe the roles of calcium ions and ATP in the contraction of a myofibril Q1.(a) Describe the roles of calcium ions and ATP in the contraction of a myofibril............................... (Extra space)............... (5) ATP is an energy source used in many cell processes.

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

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

Energy Production In A Cell (Chapter 25 Metabolism)

Energy Production In A Cell (Chapter 25 Metabolism) Energy Production In A Cell (Chapter 25 Metabolism) Large food molecules contain a lot of potential energy in the form of chemical bonds but it requires a lot of work to liberate the energy. Cells need

More information

Unit 2: Metabolic Processes

Unit 2: Metabolic Processes How is energy obtained biologically? Recall: Red Ox Reactions Unit 2: Metabolic Processes Oxidation Is the chief mechanism by which chemical potential energy is released This energy comes from reduced

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

Photosynthesis and Cellular Respiration: Cellular Respiration

Photosynthesis and Cellular Respiration: Cellular Respiration Photosynthesis and Cellular Respiration: Cellular Respiration Unit Objective I can compare the processes of photosynthesis and cellular respiration in terms of energy flow, reactants, and products. During

More information

1- Which of the following statements is TRUE in regards to eukaryotic and prokaryotic cells?

1- Which of the following statements is TRUE in regards to eukaryotic and prokaryotic cells? Name: NetID: Exam 3 - Version 1 October 23, 2017 Dr. A. Pimentel Each question has a value of 4 points and there are a total of 160 points in the exam. However, the maximum score of this exam will be capped

More information

Energy Transformations. VCE Biology Unit 3

Energy Transformations. VCE Biology Unit 3 Energy Transformations VCE Biology Unit 3 Contents Energy Cellular Respiration Photosynthesis Storing Energy Energy Energy exists in many forms: light, heat, sound, mechanical, electrical, chemical and

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 5 MICROBIAL METABOLISM

CHAPTER 5 MICROBIAL METABOLISM CHAPTER 5 MICROBIAL METABOLISM I. Catabolic and Anabolic Reactions A. Metabolism - The sum of all chemical reactions within a living cell either releasing or requiring energy. (Overhead) Fig 5.1 1. Catabolism

More information

Active Learning Exercise 5. Cellular Respiration

Active Learning Exercise 5. Cellular Respiration Name Biol 211 - Group Number Active Learning Exercise 5. Cellular Respiration Reference: Chapter 9 (Biology by Campbell/Reece, 8 th ed.) 1. Give the overall balanced chemical equation for aerobic cellular

More information

CELLULAR RESPIRATION. Glycolysis

CELLULAR RESPIRATION. Glycolysis CELLULAR RESPIRATION Glycolysis Sources of Energy Carbohydrates glucose most usable source of energy cells turn to other fuels only if glucose supplies have been depleted stored in glycogen (animal) &

More information

Cellular Respiration and Fermentation

Cellular Respiration and Fermentation Chapter 9 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 Cellular Respiration and Fermentation

More information

MITOCHONDRIA LECTURES OVERVIEW

MITOCHONDRIA LECTURES OVERVIEW 1 MITOCHONDRIA LECTURES OVERVIEW A. MITOCHONDRIA LECTURES OVERVIEW Mitochondrial Structure The arrangement of membranes: distinct inner and outer membranes, The location of ATPase, DNA and ribosomes The

More information

Cellular Respiration: Harvesting Chemical Energy

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

More information

How Cells Harvest Chemical Energy

How Cells Harvest Chemical Energy Chapter 6 How Cells Harvest Chemical Energy PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Lecture by Richard L. Myers 6.1 Photosynthesis

More information

4.5. Cellular Respiration in Detail. Teacher Notes and Answers. section. Instant Replay 1. 4ATP, 2NADH, and 2pyruvate should be circled.

4.5. Cellular Respiration in Detail. Teacher Notes and Answers. section. Instant Replay 1. 4ATP, 2NADH, and 2pyruvate should be circled. section 4.5 ellular Respiration in Detail Teacher Notes and Answers SETION 5 Instant Replay. 4ATP,, and pyruvate should be circled.. They are energy-carrying molecules that transfer energy to the electron

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

1. Cyanide is introduced into a culture of cells and is observed binding to a mitochondrion, as shown in the diagram below.

1. Cyanide is introduced into a culture of cells and is observed binding to a mitochondrion, as shown in the diagram below. 1. Cyanide is introduced into a culture of cells and is observed binding to a mitochondrion, as shown in the diagram below. The following observations are made: Cyanide binds to and inhibits an enzyme

More information

CELLULAR RESPIRATION: HARVESTING CHEMICAL ENERGY. The Principles of Energy Harvest

CELLULAR RESPIRATION: HARVESTING CHEMICAL ENERGY. The Principles of Energy Harvest CELLULAR RESPIRATION: HARVESTING CHEMICAL ENERGY The Principles of Energy Harvest 1. Cellular respiration and fermentation are catabolic, energy-yielding pathways 2. Cells recycle the ATP they use for

More information

CHAPTER 7 10/16/2012. How cells release Chemical Energy

CHAPTER 7 10/16/2012. How cells release Chemical Energy CHAPTER 7 10/16/2012 How cells release Chemical Energy 1 7.1 OVERVIEW OF CARBOHYDRATE BREAKDOWN PATHWAYS Organisms stay alive by taking in energy. Plants and all other photosynthetic autotrophs get energy

More information

True or False: 1. Reactions are called endergonic if they occur spontaneously and release free energy.

True or False: 1. Reactions are called endergonic if they occur spontaneously and release free energy. True or False: 1. Reactions are called endergonic if they occur spontaneously and release free energy. 2. Enzymes catalyze chemical reactions by lowering the activation energy 3. Biochemical pathways are

More information

Energy and life. Generation of Biochemical Energy Chapter 21. Energy. Energy and biochemical reactions: 4/5/09

Energy and life. Generation of Biochemical Energy Chapter 21. Energy. Energy and biochemical reactions: 4/5/09 Energy and life Generation of Biochemical Energy Chapter 21 1 Biological systems are powered by oxidation of biomolecules made mainly of C, H and O. The food biomolecules are mainly Lipids (fats) Carbohydrates

More information

Lecture Outline Correlates with our Chapter 7

Lecture Outline Correlates with our Chapter 7 Chapter 9 Cellular Respiration: Harvesting Chemical Energy Lecture Outline Correlates with our Chapter 7 Overview: Life Is Work To perform their many tasks, living cells require energy from outside sources.

More information

CELLULAR RESPIRATION SUMMARY EQUATION. C 6 H 12 O 6 + O 2 6CO2 + 6H 2 O + energy (ATP) STEPWISE REDOX REACTION

CELLULAR RESPIRATION SUMMARY EQUATION. C 6 H 12 O 6 + O 2 6CO2 + 6H 2 O + energy (ATP) STEPWISE REDOX REACTION CELLULAR RESPIRATION SUMMARY EQUATION C 6 H 12 O 6 + O 2 6CO2 + 6H 2 O + energy (ATP) STEPWISE REDOX REACTION Oxidation: partial or complete loss of electrons Reduction: partial or complete gain of electrons

More information

1 CH:14 RESPIRATION IN PLANTS https://biologyaipmt.com/

1 CH:14 RESPIRATION IN PLANTS https://biologyaipmt.com/ 1 CH:14 RESPIRATION IN PLANTS https://biologyaipmt.com/ CHAPTER 14 RESPIRATION IN PLANTS All the energy required for 'life' processes is obtained by oxidation of some macromolecules that we call 'food'.

More information

BY: RASAQ NURUDEEN OLAJIDE

BY: RASAQ NURUDEEN OLAJIDE BY: RASAQ NURUDEEN OLAJIDE LECTURE CONTENT INTRODUCTION CITRIC ACID CYCLE (T.C.A) PRODUCTION OF ACETYL CoA REACTIONS OF THE CITIRC ACID CYCLE THE AMPHIBOLIC NATURE OF THE T.C.A CYCLE THE GLYOXYLATE CYCLE

More information

Cellular Respiration Stage 1: Glycolysis (Ch. 6)

Cellular Respiration Stage 1: Glycolysis (Ch. 6) Cellular Respiration Stage 1: Glycolysis (Ch. 6) What s the point? The point is to make! 2007-2008 Harvesting stored energy Energy is stored in organic molecules carbohydrates, fats, proteins Heterotrophs

More information

Enzymes what are they?

Enzymes what are they? Topic 11 (ch8) Microbial Metabolism Topics Metabolism Energy Pathways Biosynthesis 1 Catabolism Anabolism Enzymes Metabolism 2 Metabolic balancing act Catabolism Enzymes involved in breakdown of complex

More information

Glycolysis and Cellular Respiration

Glycolysis and Cellular Respiration Glycolysis and Cellular Respiration An Introduction to Essential Cellular Metabolic athways GLY e- Cytolplasm TS e- KC Matrix of Mitochondria Cytolplasm By Noel Ways Basic Metabolic athways: Glycolosis,

More information

Anaerobic Fermentation

Anaerobic Fermentation Anaerobic Fermentation BTEC 101 Bacterial Metabolism Metabolism represents the sum of chemical changes that converts nutrients, the raw materials necessary to nourish living organisms, into energy and

More information

Cellular Respiration Part V: Oxidative Phosphorylation

Cellular Respiration Part V: Oxidative Phosphorylation Cellular Respiration Part V: Oxidative Phosphorylation Figure 9.16 Electron shuttles span membrane 2 NADH or 2 FADH 2 MITOCHONDRION 2 NADH 2 NADH 6 NADH 2 FADH 2 Glucose Glycolysis 2 Pyruvate Pyruvate

More information