Inquiry Into Life
15th Edition
ISBN: 9781260177671
Author: Mader, Sylvia S., Windelspecht, Michael
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 7.4, Problem 12A
Which of these is not true of the electron transport chain?
a. The electron transport chain is located on the cristae of the mitochindria.
b. The electron transport chain produces more NADH than any
c. The electron transport chain contains cytochrome molecules.
d. The electron transport chain ends when oxygen accepts electrons.
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During glycolysis, pyruvate oxidation, and the citric acid cycle, NADH is produced. The citric acid cycle also produces FADH2. What is the purpose of these molecules?
a. to produce carbon dioxide to breathe out
b. to produce oxygen that is needed for the electron transport chain
c. to carry electrons to the electron transport chain
d. to provide the ADP and phosphate that are needed to make ATP
Which of the following statements about the generation of ATP in the electron transport chain is correct?
a. The generation of ATP from ADP coupled to electron transfer occurs by substrate level phosphorylation as in glycolysis.
b. ATP synthase generation of ATP involves a rotating structure inside the inner mitochondrial membrane.
c. ATP synthase generation of ATP involves a rotating structure outside the inner mitochondrial membrane.
d. Electron transport generates a proton gradient across the outer mitochondrial membrane.
choose the description below that best completes the statement " oxidative phosphorylation is the process in mitochondria by which
a. electrons reduce O2 to H2O and this causes ATP to mbe made
b.glycolysis produces more ATP than is needed to activate its pathway.
c. oxygen is used to cause phosphorylation of biological molecules.
d. synthesis of ATP is dependent on passage of electrons through the electron transport chain
Chapter 7 Solutions
Inquiry Into Life
Ch. 7.1 - Describe the overall equation for cellular...Ch. 7.1 - Prob. 2LOCh. 7.1 - Prob. 3LOCh. 7.1 - Explain the role of NAD+ and FAD in cellular...Ch. 7.1 - Distinguish between the aerobic and anaerobic...Ch. 7.1 - Prob. 3CYPCh. 7.1 - Prob. 1ACh. 7.1 - Prob. 2ACh. 7.1 - Prob. 3ACh. 7.1 - Prob. 4A
Ch. 7.1 - Prob. 5ACh. 7.2 - Describe the location and inputs and outputs of...Ch. 7.2 - Explain why ATP is both an input and output of...Ch. 7.2 - Explain why there is an energy-investment phase...Ch. 7.2 - Prob. 2CYPCh. 7.2 - 6. During glycolysis, what is the net production...Ch. 7.2 - Prob. 7ACh. 7.3 - Explain how ATP can continue to be produced in the...Ch. 7.3 - Describe the advantages and disadvantages of...Ch. 7.3 - Describe the environmental conditions that would...Ch. 7.3 - Prob. 2CYPCh. 7.3 - Prob. 8ACh. 7.3 - Prob. 9ACh. 7.4 - Prob. 1LOCh. 7.4 - Summarize the inputs and outputs of the...Ch. 7.4 - Prob. 3LOCh. 7.4 - How might a meal of a cheeseburger and fries be...Ch. 7.4 - Prob. 2QTCCh. 7.4 - Prob. 1CYPCh. 7.4 - Prob. 2CYPCh. 7.4 - Discuss why there is variation in the number of...Ch. 7.4 - Prob. 10ACh. 7.4 - Which of these is not true of the citric acid...Ch. 7.4 - Which of these is not true of the electron...Ch. 7.4 - The oxygen required by cellular respiration is...Ch. 7 - Prob. S2.5BYBCh. 7 - Prob. S3.3BYBCh. 7 - Figure 6.3 How does the ATP cycle resemble a...Ch. 7 - What are the differences between the aerobic and...Ch. 7 - How is the energy of a glucose molecule harvested...Ch. 7 - How are other organic nutrients, such as proteins...Ch. 7 - Bacteria do not have mitochondria, and yet they...Ch. 7 - Rotenone is a broad-spectrum insecticide that...Ch. 7 - Some fat-burning compounds accelerate the movement...
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- What fundamental difference sets apart anaerobic respiration from aerobic respiration? a. Anaerobic respiration does not have Krebs Cycle. b. Anaerobic respiration does not have an electron transport chain. c. Anaerobic respiration involves substrate-level phosphorylation only. d. Anaerobic respiration utilizes electronegative compounds such as nitrates as final electron acceptor.arrow_forwardWhen electrons are transferred down the electron transport chain during cellular respiration, what happens? a. NAD+ or FAD receive electrons at the end the electron transport chain. b. As electrons are transferred down the chain, energy is provided in the form of ATP. c. The more electronegative atom is reduced, and energy is released. d. In each step, electrons are transferred to substances that are less electronegative. e. Energy released from the electron transfer is used to pump H+ into the matrix.arrow_forwardWhich of the following statements about aerobic respiration is true? a. Oxygen is the final electron acceptor in the citric acid cycle. b. Coenzyme-A is a substrate in the reaction that generates a key reactant for the citric acid cycle. c. Redox reactions occur in the electron transport chain (ETC), but not during the citric acid cycle and not during glycolysis. d. The citric acid cycle is the main ATP producer in aerobic respiration.arrow_forward
- Which of the following best describes the action of cytochrome c oxidase? a. Cytochrome c oxidase combines water and oxygen to produce hydrogen peroxide. b. Cytochrome c oxidase transports electrons out of the respiratory reaction. c. Cytochrome c oxidase enables oxygen to accept electrons at the end of the electron transport respiratory chain. d. Cytochrome c oxidase converts hydrogen peroxide into water and oxygen. e. Cytochrome c oxidase reduces thiosulfate anion to hydrogen sulfide.arrow_forwardIdentify a metabolic pathway associated with the enzymes localized on the mitochondrial cristae. a. the citric acid cycle b. the electron transport chain c. the citric acid cycle and the electron transport chain d. none of thesearrow_forwardIn what aerobic respiration process does oxygen is needed to accept electron from complex IV? A. Chemiosmosis B. Electron transport chain C. Glycolysis D. Krebs cycle Both cellular respiration and photosynthesis produce adenosine triphosphate. How many ATPs are produced in cellular respiration? A. 26-30 B. 30-32 C. 34-38 D. 40-44 Which of the following are the types of fermentation? A. alcoholic and lactic acid B. aerobic and fermentation C. cellular respiration and photosynthesis D. glycolysis cellular respiration and photosynthesisarrow_forward
- what is the transmembrane protein responsible for ATP synthesis during both photosynthesis and cellular respiration? a. Na+/K+ ATPase b. SGLUT-1 c. ATP synthase d. carbonic anhydrase e. rubiscoarrow_forwardDuring oxidative phosphorylation, the proton motive force that is generated by electron transport is used to: a. Generate the substrates (ADP and Pi) for the ATP synthase. b. Create a pore in the inner mitochondrial membrane. c. Oxidize NADH to NAD+. d. Induce a conformational change in the ATP synthase.arrow_forwardWhich of the following statements describes the end step for the electron transport chain? A. H+ ions flow down the gradient to generate ATP B. electrons are transferred to NADH and FADH2 for chemiosmosis C. electrons are transferred to oxygen, causing it to split and take up H+ ions, which form water D. H+ are pumped across the inner membrane of mitochondria to establish an electrochemical gradientarrow_forward
- The electrons carried by NADH and FADH2 can be a. pumped into the intermembrane space. b. transferred to the ATP synthase. c. moved between proteins in the inner membrane of the mitochondrion. d. transported into the matrix of the mitochondrionarrow_forwardwhich of the following woudl decrease the number of atp molecules generated per nadh molecule in the electron transport chain? a. increasing the energy of the electrons nadh transfer to complex I b. reducing the number of protons required by ATP synthase to produce an ATP moelcule c. having nadh transfer its elections to complex III instead of complex I d. increasing the amount of oxygen available to the cellarrow_forwardATP production during the Electron Transport Chain is driven by which of the following? A. Movement of H+ ions across mitochondrial membranes via ATP synthase B. Movement of electrons down a gradient of charge C. Oxygen accepting H+ ions D. NADH and FADH2 donating phosphate to ADP E. Release of CO2arrow_forward
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