Oxidative phosphorylation

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Beta oxidation

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

Campbell Biology Chapter 9

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Pyruvate decarboxylation

Anaerobic respiration

Mitochondrial matrix

Carbohydrate catabolism

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 9Cellular Respiration and Fermentation 1 Life Is Work an Introduction Living cells require energy to do work: assembling polymers, membrane transport, etc. Animals can obtain energy by feeding on other animals or photosynthetic organisms Energy flows into an ecosystem as sunlight and leaves as heat The chemical elements essential to life are recycled Photosynthesis generates O2 and organic molecules, which are used in cellular respiration Cells use chemical energy stored in organic molecules to generate ATP, which powers work ? 2017 Pearson Education, Inc. 2 Light energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria CO2 + H2O + O2 Organic

AP biology test bank chp 9

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Beta oxidation

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

respiration respiration

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Anaerobic respiration

Crista

Adenosine diphosphate

1 B io F actsheet January 1998 Number 12 Respiration Aerobic respiration can be divided into four stages: 1. Glycolysis (G) 2. The Link reaction (LR) 3. Kreb?s cycle (K) 4. The electron transfer chain (ETC) These take place in different parts of the cell (Table 1) and the detailed biochemistry of these reactions is shown overleaf. Respiratory quotients The respiratory quotient (RQ) is defined as the ratio of carbon dioxide produced to oxygen consumed per unit time by an organism: volume of CO2 produced volume of O2 consumed Different substances give different RQ values Cellular respiration is the process by which the energy contained in organic molecules is made available for all of the active

Ap bio cell respiration4 ppt

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Cellular respiration

Biochemistry

Cell biology

Crista

Mitochondrion

Cytochrome c oxidase

Intermembrane space

Cellular Respiration Stage 4: Electron Transport Chain Cellular respiration What?s the point? The point is to make ATP! ATP ATP accounting so far? Glycolysis ? 2 ATP Kreb?s cycle ? 2 ATP Life takes a lot of energy to run, need to extract more energy than 4 ATP! A working muscle recycles over 10 million ATPs per second There?s got to be a better way! I need a lot more ATP! There is a better way! Electron Transport Chain series of proteins built into inner mitochondrial membrane along cristae transport proteins & enzymes transport of electrons down ETC linked to pumping of H+ to create H+ gradient yields ~36 ATP from 1 glucose! only in presence of O2 (aerobic respiration) O2 That sounds more like it! Mitochondria Double membrane outer membrane inner membrane

Ch 7 Study Guide

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Carbohydrate catabolism

AP Biology Name ____Ryan Hanssens_______ Chapter 9 Guided Reading Assignment ?Hint: review the concept check questions ? these are great quick quiz questions!? Define the two catabolic pathways: Fermentation ? a partial degradation of sugars that occurs without the use of oxygen? Cellular respiration ? when oxygen is consumed as a reactant along with the organic fuel; most efficient catabolic pathway; mitochondria house most of the metabolic equipment needed ??

ATP Production

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Electrochemical gradient

Metabolism

ATP synthase

Mitochondria and Oxidative Phosphorylation Controlled oxidation of sugars Breaks down sugar in a number of small stepwise events = more efficient NADH and FADH2 carry energy in the form of high energy electrons Produce these molecules as a way to transport high energy electrons (Energy is stored as redox potential) These electrons will be transferred to the electron transport chain Glycolysis occurs in a stepwise process NADH is an energy carrier (energy will be harvested later) Some ATP is produced directly Most of the energy is still stored in pyruvate molecules Citric acid/tricarboxylic acid/Krebs cycle Oxidize pyruvate Yield for every 2 molecules of acetyl CoA: 2 GTP + 2 FADH2 + 6 NADH + 4 CO2

Cellular Respiration Notes

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Glucose

Environment

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cellular respiration

biochemistry

Chemistry

Glycolysis

Crista

mitochondrion

Technology

Cellular Respiration Wednesday, March 06, 2013 5:23 PM ? Cellular Respiration Cellular respiration - an ATP-generating process that occurs within cells; energy is extracted from energy-rich glucose to form ATP from ADP and phosphate C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy Glucose + air = carbon dioxide + water + energy Aerobic respiration - cellular respiration in the presence of O2; divided into three components: glycolysis, the Krebs cycle, and oxidative phosphorylation ? Glycolysis Glycolysis - the decomposition (lysis) of glucose (glyco) to pyruvate (or pyruvic acid); nine intermediate products are formed and, of course, each one is catalyzed by an enzyme; in six of the steps, magnesium ions are cofactors that promote enzyme activity; summary of the steps:

biology ch 9 guide

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Pyruvate decarboxylation

Mitochondrial matrix

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

Learning Express AP Biology Exam 1

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Eli Lilly and Company

Insulin

Amino acid

Cell

Phosphorylation