Chemiosmosis

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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 10

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Light-dependent reactions

Light-independent reactions

Stroma

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 10 Photosynthesis 1 The Process That Feeds the Biosphere Plants and other photosynthetic organisms contain organelles called chloroplasts Photosynthesis is the process that converts solar energy into chemical energy within chloroplasts Directly or indirectly, photosynthesis nourishes almost the entire living world Photosynthesis occurs in plants, algae, certain other unicellular eukaryotes, and some prokaryotes ? 2017 Pearson Education, Inc. 2 Autotrophs are ?self-feeders? that sustain themselves without eating anything derived from other organisms Autotrophs are the producers of the biosphere, producing organic molecules from CO2 and other inorganic molecules

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 10

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Light-dependent reactions

Light-independent reactions

Chloroplast

RuBisCO

Campbell's Biology, 9e (Reece et al.) Chapter 10 Photosynthesis

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

Ap bio cell respiration4 ppt

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Cellular respiration

Biochemistry

Cell biology

Electron transport chain

Crista

Mitochondrion

Cytochrome c oxidase

Adenosine triphosphate

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 10 Study Guide

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Light-independent reactions

Photosynthetic reaction centre

Photorespiration

Carbon fixation

C4 carbon fixation

Light-dependent reactions

Adapted from L. Miriello by S. Sharp AP Biology Name _________________________ Chapter 10 Guided Reading Assignment Label the diagram below.??? Explain the experiment reasoning that Van Niel used to understand photosynthesis.??? Use the diagram to label and identify the two broad stages of photosynthesis.? What is carbon fixation??? What is a photon??? Why are leaves green??? Describe Engelmann?s experiment and explain its results.???? What is the difference between an absorption spectra and action spectrum????? What happens to chlorophyll when it is hit by light? How does this relate to potential energy???? Identify the following parts of a photosystem: Photosystem? Light harvesting complex? Reaction center? Primary electron acceptor?

Ch 7 Study Guide

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Substrate-level phosphorylation

Adenosine triphosphate

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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Electron transport chain

Electrochemical gradient

Adenosine triphosphate

Metabolism

Citric acid cycle

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

biology ch 9 guide

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Substrate-level phosphorylation

Pyruvate decarboxylation

Citric acid cycle