Ch.9 - RespirationSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

ETC and Oxidative Phosphorylation

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Sections
Redox Reactions
Cellular Respiration
Glycolysis
Pyruvate Oxidation
Citric Acid Cycle
ETC and Oxidative Phosphorylation
Anaerobic Respiration and Fermentation
Additional Practice
Cumulative Cellular Respiration

Concept #1: Electron Transport Chain and Redox

Concept #2: Complexes I, II, III, and IV and Proton Gradient

Concept #3: Chemiosmosis and Oxidative Phosphorylation

Additional Problems
Chemiosmotic generation of ATP is driven by: a. phosphate transfer through the plasma membrane b. sodium, potassium pump c. a difference in H+ concentration on the two sides of the mitochondrial membrane d. osmosis of macromolecules e. large quantities of ADP
Which of the following statements about protons and the mitochondria is  false?  a. There are fewer protons in the matrix than in the intermembrane space. b. Some proteins of the electron transport chain pump protons into the matrix. c. The lipids of the inner convoluted membrane are highly impermeable to the passage of protons. d. A proton that has just entered the matrix may be bound by O2. e. Protons pass through an ATP synthase along their concentration gradient.
Chemiosmotic generation of ATP is driven bya.  phosphate transfer through the plasma membraneb.  sodium, potassium pumpc.  a difference in H+ concentration on the two sides of the mitochondrial membraned.  osmosis of macromoleculese.  large quantities of ADP
Consider Complex I and Complex IV of the electron transport chain of mitochondria. Which of the following is true? a. The electrons passed off by complex IV must have come from the same source as the electrons passed off by Complex I.b. The electrons given off by Complex I are of higher energy than the electrons passed off by Complex IV.c. Complex I passes its electrons to Complex II while Complex IV passes its electrons to O2.d. Complex I receives electrons from NADH or FADH2 while Complex IV receives its electrons from Complex III. 
If FADH2 is the donor of electrons, the complex that does not get used below isa. Complex I (W)b. Complex III (X)c. Complex IV (Y)d. ATP synthase
Where does oxidative phosphorylation take place, and what other processes are required for this to occur?
How does the photosynthesis electron transport chain differ from the ETC in cellular respiration? How is it the same? How is water used in this process?
What's substrate level phosphorylation?.How is it different than oxidative phosphorylation?
A cell goes through the stages of cellular respiration but upon reaching oxidative phosphorylation it cannot generate ATP. What are two possible reasons that could account for this result and explain WHY?
When the terminal electron acceptor in the chain of carrier proteins, _______ is reduced, _______ is produced.A. NADH; waterB. oxygen; glucoseC. water; oxygenD. oxygen; water
Under standard conditions, will the following reactions proceed spontaneously as written?a. 2Cytochrome c (Fe3+) + NADH ⇌ 2 Cytochrome c (Fe2+) + NAD+b. Cyto a (Fe2+) + cyto b (Fe3+) ⇌ Cyto a (Fe3+) + cyto b (Fe2+)
What does the term “oxidative phosphorylation” mean? What is substrate-level phosphorylation? Check all that apply.A. Substrate-level phosphorylation refers to the formation of ATP from the reactions of reduced coenzymes as they are oxidized in the electron-transport chain.B. Oxidative phosphorylation refers to the transfer of a phosphoryl group between substrates and does not involve oxidized and reduced coenzymes.C. Oxidative phosphorylation refers to formation of ATP from the reactions of reduced coenzymes as they are oxidized in the electron-transport chain.D. Substrate-level phosphorylation refers to the transfer of a phosphoryl group between substrates and does not involve oxidized and reduced coenzymes.
Based on the number of ATP generated during the electron transport chain for every one glucose molecule, how many ATP would be generated if 10 glucose molecules were broken down?A. Between 320 and 340 ATP moleculesB. Between 62 and 68 ATP moleculesC. Between 32 and 34 ATP moleculesD. 10 ATP molecules
Which step of respiration produces the most ATP? Generally, how does that work (explain in 2-3 sentences)?
Which of the following statements are true concerning oxidase enzymes? Select one or more.A. Oxidase enzymes are made by organisms that use aerobic respiration for energy production.B. Oxidase enzymes are associated with the cytoplasmic membrane in bacteria.C. Oxidase enzymes function in the electron transport chain.D. An oxidase enzyme catalyzes the oxidation of a cytochrome.
Which is a product of oxidative phosphorylation?A. waterB. oxygenC. lactic acidD. ADPE. NADH
Which is NOT TRUE about the electron transport chain?A. The final electron acceptor in aerobic respiration is oxygen.B. NADH and FADH2 gain electrons from the electron carriers.C. There is a formation of a proton gradient that drives the formation of ATP.D. This is where most of the ATP is produced for the cell.
Which molecule shuttles electrons from the glycolysis sequence to the electron transport chain?
The energy used to pump hydrogen ions from the mitochondrial matrix across the inner membrane and into the intermembrane space os derived from _____. A. ATP hydrolysisB. reactions in the electron transport chainC. decreasing the pH in the mitochondrial matrixD. splitting water to form oxygen and protons
Cyanide blocks the transfer of electrons from cytochrome c oxidase to O2. What would be the effect of cyanide on ATP synthesis? On the Krebs cycle? Suppose there was a drug that could accept electrons from cytochrome c and transfer them directly to O2 without pumping electrons. If this drug were added together with cyanide to mitochondria, what would be the effect on the number of ATP molecules synthesized per molecule of glucose oxidized?
The electron transport system in the mitochondria is responsible for the synthesis of large amounts of _____.A. NADHB. FADH2C. ATPD. Coenzyme A
In liver cells, the innermitochondrial membranes areapproximately five times the surface area of the outer mitochondrial membranes. What is the most likely consequence.A. It allows for an increased rate of glycolysisB. It increases the surface area for susbtrate-level phosphorylationC. It increases the surface area for oxidative phosphorylationD. It allows for an increased rate of the citric acid cycle
Starting with shredded spinach leaves, you follow a procedure that separates cellular organelles into different fractions. To identify the fraction that contains the mitochondria, you should test for the presence of A. insulin receptorsB. aquaporinC. phospholipids present only in the mitochondrial outer membraneD. electron transport proteinsE. mitochondrial wall polysaccharides