Cellular respiration and fermentation 04/18/2016 BI102

Size: px
Start display at page:

Download "Cellular respiration and fermentation 04/18/2016 BI102"

Transcription

1 Cellular respiration and fermentation 04/18/2016 BI102

2 Announcements Exam 1 after lecture Don t forget to do the online assignments every week! Quiz 2 and lab 2 review

3 Cellular Respiration

4 Cells require lots of energy Cell require a constant supply of energy to perform metabolic reactions Energy is transferred from energy-storage molecules like glucose to energy-carrier molecules like ATP The energy used on earth comes almost entirely from the Sun

5 Energy storage Plants convert glucose to sucrose or starch Animals convert glucose to glycogen and fat We will not cover the conversion of storage molecules to glucose We will cover the breakdown of glucose during respiration

6 The energy carrier molecule, ATP A nucleoside with three phosphates AMP is a nucleotide in RNA Paired with endergonic reactions dephosphorylation of ATP

7 Electron (energy) carriers FAD (vitamin B2) and NAD (vitamin B3) are electron carriers They can be easily reduced (add e-) or oxidized (give out e-)

8 Oxidative phosphorylation chemiosmosis in the cell for ATP production In eukaryotes, oxidative phosphorylation takes place in mitochondria. In prokaryotes, this process takes place in the plasma membrane.

9 Photosynthesis 6 CO H 2 O + light energy C 6 H 12 O O 2 Cellular respiration C 6 H 12 O O 2 6 CO H 2 O + 38 ATP + heat

10 Cellular respiration Animals do this too We just bypass photosynthesis by eating, breathing (exhaled)

11 Cellular Respiration

12 Cellular respiration Glycolysis generates 2 ATP Kreb s cycle generates 2 ATP Identified in 1937 by Hans Adolf Krebs Electron Transport Chain generates 34 ATP 38 ATP total (in theory)

13 Glycolysis Glyco sweet Lysis split apart Happens outside the mitochondria Cytoplasm One glucose molecule is converted to two pyruvate molecules 2 ATP and 2 NADH are generated

14 Kreb s or Citric acid cycle If oxygen is available, the 2 pyruvate will be broken down into 6 CO2 and ATP Takes place in the matrix

15 Oxidation of pyruvate First, each pyruvate is split, releasing a CO2, leaving an acetyl behind Acetyl reacts with CoA, transferring two electrons to NAD + The CO2 has two of the original six carbons from glucose

16 Kreb s or Citric acid cycle Start with one molecule of Acetyl CoA By the end of the cycle, two CO 2 will be generated and chemical energy will be stored in 1 ATP, 3 NADH, and 1 FADH 2 CO 2 diffuses from the mitochondrial matrix into your blood where it is transported finally to your lungs

17 Kreb s or Citric acid cycle If oxygen is available, the 2 pyruvate will be broken down into 6 CO2 and ATP

18 Energy inventory Glycolysis Each glucose 2 pyruvate + 2 ATP Kreb s cycle Each pyruvate 3 CO ATP Total is 4 ATP per glucose But the cell has charged up 10 NADH and 2 FADH 2 per glucose These will release electrons during the electron transport chain The depleted energy carriers can be recharged again

19 Electron Transport Chain (ETC) High-energy electrons jump from molecule to molecule releasing small amounts of energy Energy is used to pump H + across the inner membrane into the intermembrane space

20 Electron Transport Chain (ETC) The concentration gradient of H + across the membrane is used to drive ATP production by ATP synthase The electrons, the H +, and O 2 combine to form water (1 water molecule/2 electrons)

21 Electron Transport Chain (ETC)

22 ATP is recycled by the cell A protein carrier takes the ATP molecules to the intermembrane space (and then the ADP molecules to the matrix) The ATP molecules diffuse through the large pores in the outer membrane and enter the cytosol Then, ADP molecules diffuse back into the intermembrane space

23 Fermentation What happens when oxygen is unavailable? Cells must generate ATP without oxygen Fermentation Less efficient 2 ATP per glucose Waste products Lactic acid (animals, bacteria (yogurt)) C 6 H 12 O 6 2 Lactic acid + 2 ATP + heat

24 Lactic acid fermentation

25 Fermentation Waste products in yeast: ethanol and CO 2 C 6 H 12 O 6 2 CO Ethanol + 2 ATP + heat

26 Alcoholic fermentation

27 Cellular respiration - summary

28 Amino acids can be sent to glucose canabolism

29 Glycogen, fats, and proteins can be fed into cell respiration

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

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

Harvesting energy: photosynthesis & cellular respiration part 1I

Harvesting energy: photosynthesis & cellular respiration part 1I Harvesting energy: photosynthesis & cellular respiration part 1I Agenda I. Overview (Big Pictures) of Photosynthesis & Cellular Respiration II. Making Glucose - Photosynthesis III. Making ATP - Cellular

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

Living organisms obtain energy by breaking down organic molecules during cellular respiration.

Living organisms obtain energy by breaking down organic molecules during cellular respiration. Section 3: Living organisms obtain energy by breaking down organic molecules during cellular respiration. K What I Know W What I Want to Find Out L What I Learned Essential Questions What are the stages

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

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 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 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

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

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

Cellular Respiration an overview Section 9.1

Cellular Respiration an overview Section 9.1 Cellular Respiration an overview Section 9.1 Where do organisms get their energy? Unit calories 1 calorie = amount of energy required to increase 1 gram of water by 1 degrees Celsius 1000 calories 1 Calorie

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 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

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

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

Harvesting Energy: Glycolysis and Cellular Respiration

Harvesting Energy: Glycolysis and Cellular Respiration Lesson 5 Harvesting Energy: Glycolysis and Cellular Respiration Introduction to Life Processes - SCI 102 1 How Cells Obtain Energy Cells require a constant flow of energy Most cellular energy is stored

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

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 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. 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

Cellular Respiration

Cellular Respiration Cellular Respiration Energy Review Energy Storing Molecules ATP, NADPH (NAD + ), FADH (FAD + ), FADH 2 ATP supplies most of the energy that drives metabolism in living things ATP releases energy when converted

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

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

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

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

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

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

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

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

Objective: You will be able to construct an explanation for how each phase of respiration captures and stores free energy.

Objective: You will be able to construct an explanation for how each phase of respiration captures and stores free energy. Objective: You will be able to construct an explanation for how each phase of respiration captures and stores free energy. Do Now: Compare and contrast the three black equations below ADP + P + Energy

More information

What is Glycolysis? Breaking down glucose: glyco lysis (splitting sugar)

What is Glycolysis? Breaking down glucose: glyco lysis (splitting sugar) What is Glycolysis? Breaking down glucose: glyco lysis (splitting sugar) Most ancient form of energy capture. Starting point for all cellular respiration. Inefficient: generates only 2 ATP for every 1

More information

Cellular Respiration. How is energy in organic matter released for used for in living systems?

Cellular Respiration. How is energy in organic matter released for used for in living systems? Cellular Respiration How is energy in organic matter released for used for in living systems? Cellular Respiration Organisms that perform cellular respiration are called chemoheterotrophs Includes both

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

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

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

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 Chemical Equation 6 O 2 + C 6 H 12 O 6 6 H 2 O + 6 CO 2 + Page 107 Adenosine Triphosphate Adenosine Diphosphate Background Aerobic= requires oxygen Anaerobic= does not require oxygen

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

Chapter Seven (Cellular Respiration)

Chapter Seven (Cellular Respiration) Chapter Seven (Cellular Respiration) 1 SECTION ONE: GLYCOLYSIS AND FERMENTATION HARVESTING CHEMICAL ENERGY Cellular respiration is the process in which cells make adenosine triphosphate (ATP) by breaking

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

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

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

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

Name Class Date. 1. Cellular respiration is the process by which the of "food"

Name Class Date. 1. Cellular respiration is the process by which the of food Name Class Date Cell Respiration Introduction Cellular respiration is the process by which the chemical energy of "food" molecules is released and partially captured in the form of ATP. Carbohydrates,

More information

Cellular Respiration

Cellular Respiration Cellular Respiration Producers Producers get their energy from the sun. Producers convert this light energy into stored chemical energy (glucose). This process is called photosynthesis. Consumers Consumers

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

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

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

Biology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall

Biology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall Biology 1 of 39 2 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 3 of 39 Both

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

Biology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall

Biology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall Biology 1 of 39 EQ What is glycolysis? What are the results from the Krebs Cycle and Electron Transport? 2 of 39 9-1 Chemical Pathways Food serves as a source of raw materials for the cells in the body

More information

Lesson Overview. Cellular Respiration: An Overview. Lesson Overview. 9.1 Cellular Respiration: An Overview

Lesson Overview. Cellular Respiration: An Overview. Lesson Overview. 9.1 Cellular Respiration: An Overview 9.1 Cellular Respiration: An Overview Chemical Energy and Food Food provides living things with the chemical building blocks they need to grow and reproduce. Food molecules contain chemical energy that

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

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

Essential Question. How do organisms obtain energy?

Essential Question. How do organisms obtain energy? Dr. Bertolotti Essential Question How do organisms obtain energy? What is cellular respiration? Burn fuels to make energy combustion making heat energy by burning fuels in one step O 2 Fuel (carbohydrates)

More information

2

2 1 2 3 4 5 6 7 8 9 10 11 What is the fate of Pyruvate? Stages of Cellular Respiration GLYCOLYSIS PYRUVATE OX. KREBS CYCLE ETC 2 The Krebs Cycle does your head suddenly hurt? 3 The Krebs Cycle An Overview

More information

1st half of glycolysis (5 reactions) Glucose priming get glucose ready to split phosphorylate glucose rearrangement split destabilized glucose

1st half of glycolysis (5 reactions) Glucose priming get glucose ready to split phosphorylate glucose rearrangement split destabilized glucose Warm- Up Objective: Describe the role of in coupling the cell's anabolic and catabolic processes. Warm-up: What cellular processes produces the carbon dioxide that you exhale? 1st half of glycolysis (5

More information

RESPIRATION Worksheet

RESPIRATION Worksheet A.P. Bio L.C. RESPIRATION Worksheet 1. In the conversion of glucose and oxygen to carbon dioxide and water a) which molecule becomes reduced? b) which molecule becomes oxidized? c) what happens to the

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

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

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

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

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

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

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

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

Cellular Respiration. Mitochondria. Redox Reaction. Cellular Respiration. Question: Plants and Animals 12/6/2012

Cellular Respiration. Mitochondria. Redox Reaction. Cellular Respiration. Question: Plants and Animals 12/6/2012 ellular Respiration ellular Respiration A catabolic, exergonic, oxygen (O 2 ) requiring process that uses energy extracted from macromolecules (glucose) to produce energy () and water (H 2 O). Equation

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

10/31/2016 CHAPTER 9 RESPIRATION I. RESPIRATION II. ENERGY FOR LIFE A. DEFINITION-THE TOTAL CHEMICAL BREAK DOWN OF GLUCOSE WITH OXYGEN

10/31/2016 CHAPTER 9 RESPIRATION I. RESPIRATION II. ENERGY FOR LIFE A. DEFINITION-THE TOTAL CHEMICAL BREAK DOWN OF GLUCOSE WITH OXYGEN CHAPTER 9 RESPIRATION KENNEDY BIOL. 1AB I. RESPIRATION A. DEFINITION-THE TOTAL CHEMICAL BREAK DOWN OF GLUCOSE WITH OXYGEN II. ENERGY FOR LIFE ALL THE ENERGY FOR LIFE COMES FROM THE METABOLISM OF GLUCOSE

More information

Cellular Respiration. Overview of Cellular Respiration. Lecture 8 Fall Overview of Cellular Respiration. Overview of Cellular Respiration

Cellular Respiration. Overview of Cellular Respiration. Lecture 8 Fall Overview of Cellular Respiration. Overview of Cellular Respiration Overview of Cellular Respiration 1 Cellular Respiration Lecture 8 Fall 2008 All organisms need ATP to do cellular work Cellular Respiration: The conversion of chemical energy of carbon compounds into another

More information

Chapter 9: Cellular Respiration

Chapter 9: Cellular Respiration Chapter 9: Cellular Respiration To perform their many tasks, living cells require energy from outside sources. Energy stored in food utimately comes from the sun. Photosynthesis makes the raw materials

More information

Chapter 6 Cellular Respiration: Obtaining Energy from Food

Chapter 6 Cellular Respiration: Obtaining Energy from Food Chapter 6 Cellular Respiration: Obtaining Energy from Food PowerPoint Lectures for Campbell Essential Biology, Fifth Edition, and Campbell Essential Biology with Physiology, Fourth Edition Eric J. Simon,

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

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

Cellular Respiration Stage 2 & 3. Glycolysis is only the start. Cellular respiration. Oxidation of Pyruvate Krebs Cycle.

Cellular Respiration Stage 2 & 3. Glycolysis is only the start. Cellular respiration. Oxidation of Pyruvate Krebs Cycle. Cellular Respiration Stage 2 & 3 Oxidation of Pyruvate Krebs Cycle AP 2006-2007 Biology Glycolysis is only the start Glycolysis glucose pyruvate 6C 2x 3C Pyruvate has more energy to yield 3 more C to strip

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

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

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

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

Table of Contents. Section 1 Glycolysis and Fermentation. Section 2 Aerobic Respiration

Table of Contents. Section 1 Glycolysis and Fermentation. Section 2 Aerobic Respiration Table of Contents Section 1 Glycolysis and Fermentation Section 2 Aerobic Respiration Objectives Identify the two major steps of cellular respiration. Describe the major events in glycolysis. Compare lactic

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

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

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

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

Cellular Respiration Cellular Respiration I. The Importance of Food A. Food provides living things with the: B. Food serves as a source of: C. Food serves as a source of: II. Chemical Energy and ATP A. Inside living cells,

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

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

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

Chapter 6 : How Cells Harvest Energy (B) Dr. Chris Doumen 10/28/14 CITRIC ACID CYCLE. Acetyl CoA CoA CoA CO 2 NAD + FADH 2 NADH FAD + 3 H + ADP + ATP

Chapter 6 : How Cells Harvest Energy (B) Dr. Chris Doumen 10/28/14 CITRIC ACID CYCLE. Acetyl CoA CoA CoA CO 2 NAD + FADH 2 NADH FAD + 3 H + ADP + ATP Chapter 6 : How Cells Harvest Energy (B) Dr. Chris Doumen Acetyl CoA CoA CoA Oxaloacetate Citrate CITRIC ACID CYCLE CO FADH 3 NAD + FAD 3 NADH ADP + P + 3 1 Pyruvate oxida.on and Citric Acid Cycle Thus

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 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

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

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

cell respiration bi Biology Junction Everything you need in Biology Cellular Respiration All Materials Cmassengale

cell respiration bi Biology Junction Everything you need in Biology Cellular Respiration All Materials Cmassengale Biology Junction Everything you need in Biology cell respiration bi Cellular Respiration All Materials Cmassengale C6H12O6 + 6O2 > 6CO2 + 6H20 + energy (heat and ATP) Energy http://www.biologyjunction.com/cell_respiration_bi.htm

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

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

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

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