BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 6, Problem 6MCQ
Fats can be broken down into acetyl CoA for use in the Krebs cycle. Fats can also
- a. be built from excess acetyl CoA for energy storage.
- b. function as an electron carrier in the electron transport chain.
- c. be broken down directly into ATP.
- d. be broken down directly into NADH.
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The metabolic function of the pentose phosphate pathway is to:
a. generate NADPH and pentoses for the biosynthesis of fatty acids and nucleic acids.
b. provide intermediates for the citric acid cycle
c. participate in oxidation-reduction reactions during the formation of H,O
d. act as a source of ADP for biosynthesis
A total of 32 mol of ATP can be produced by the complete oxidation of 1 mol of glucose in the liver. Indicate the number of these moles of ATP produced by
a. glycolysis
b. the citric acid cycle
c. the electron transport chain and oxidative
d. phosphorylation
Which of the following statements concerning the location of the metabolic pathways is correct?
a.
All reactions of the glycolysis take place in the mitochondria.
b.
All reactions of the TCA cycle take place in the mitochondria.
c.
Some reactions of the TCA cycle take place in the cytosol, and some in mitochondria.
d.
Some reactions of the glycolysis take place in the cytosol, and some in mitochondria.
Chapter 6 Solutions
BIOLOGY
Ch. 6.1 - Why do all organisms need ATP?Ch. 6.1 - What are the three general ways to generate ATP...Ch. 6.1 - Prob. 3MCCh. 6.1 - Prob. 4MCCh. 6.2 - Prob. 1MCCh. 6.2 - What occurs in each of the three stages of...Ch. 6.3 - Prob. 1MCCh. 6.3 - Prob. 2MCCh. 6.4 - Prob. 1MCCh. 6.4 - Prob. 2MC
Ch. 6.4 - Prob. 3MCCh. 6.5 - Prob. 1MCCh. 6.5 - Prob. 2MCCh. 6.5 - Prob. 3MCCh. 6.5 - Prob. 4MCCh. 6.6 - Prob. 1MCCh. 6.6 - How does the actual ATP yield compare to the...Ch. 6.7 - Prob. 1MCCh. 6.7 - Prob. 2MCCh. 6.8 - Prob. 1MCCh. 6.8 - Prob. 2MCCh. 6.8 - Prob. 3MCCh. 6.9 - Prob. 1MCCh. 6.9 - Why must the first metabolic pathways have been...Ch. 6.9 - What is the evidence that photosynthesis may have...Ch. 6.10 - What hypothesis were the researchers testing, and...Ch. 6.10 - Prob. 2MCCh. 6 - Which of the following best describes aerobic...Ch. 6 - Which stage in cellular respiration produces the...Ch. 6 - What is the role of ATP synthase? a. It uses ATP...Ch. 6 - Prob. 4MCQCh. 6 - Prob. 5MCQCh. 6 - Fats can be broken down into acetyl CoA for use in...Ch. 6 - Prob. 7MCQCh. 6 - What is endosymbiosis? a. A type of fermentation...Ch. 6 - Respiration contains the Latin word root spiro,...Ch. 6 - All steps of cellular respiration are closely...Ch. 6 - How does aerobic respiration yield so much ATP...Ch. 6 - How might a mitochondrion's double membrane make...Ch. 6 - Health-food stores sell a product called pyruvate...Ch. 6 - At what point does O2 enter the energy pathways of...Ch. 6 - Prob. 7WIOCh. 6 - Describe the energy pathways that are available...Ch. 6 - Prob. 9WIOCh. 6 - Describe how aerobic respiration occurs in...Ch. 6 - Explain the fact that species as diverse as humans...Ch. 6 - Prob. 12WIOCh. 6 - Prob. 1PITCh. 6 - Prob. 2PITCh. 6 - Prob. 3PITCh. 6 - Where would fermentation, anaerobic respiration,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of these statements about ATP is true?a.The bond joining ADP and the third phosphate is a high-energy bond.b.The formation of ATP is coupled to energy-liberating reactions.c.The conversion of ATP to ADP and Pi provides energy for biosynthesis, cell movement, and other cellular processes that require energy.d.ATP is the “universal energy carrier” of cells.e. .All of these are true.arrow_forwardWhich of the following statements about the TCA cycle is INCORRECT? a. All reactions of the TCA cycle take place in the cytosol. b. The energy released in the TCA cycle is mainly stored in the reduced electron carriers NADH and FADH2. c. The TCA cycle can recover much more energy than homolactic fermentation. d. Under aerobic conditions the TCA cycle is used to oxidize pyruvate. e. The TCA cycle is also called the citric acid cycle after the product of the first reaction catalyzed by pyruvate dehydrogenase.arrow_forwardChemical energy contained in the fatty acids that are produced in the digestion of triglycerides is converted to chemical potential energy in NADH or FADH2 in which of the following processes? a. oxidative phosphorylation b. gluconeogenesis c. Glycolysis d. B-oxidation e. all of the abovearrow_forward
- Before a fatty acid can undergo β-oxidation, it must be activated and then shuttled across the inner mitochondrial membrane. The activating agent and shuttle molecule are, respectively: A. CoA and carnitine B. CoA and citrate C. acetyl CoA and carnitine D. acetyl CoA and citratearrow_forwardIf the enzyme that catalyzed the reaction that converts pyruvate to acetyl-CoA and carbon dioxide is inhibited: a. the production of ATP would decreases but the production of electron carriers would be unaffected b. the concentration of pyruvate would decrease c. the citric acid cycle will not be affected d. ATP production in the electron transport chain/oxidative phosphorylation will increase e. the concentration of acetyl Co A would decreasearrow_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 statements about the use the NADPH generated from the pentose phosphate pathway is not true? NADPH generated from the pentose phosphate pathway is used for the synthesis of fatty acids. b. NADPH generated from the pentose phosphate pathway and cytoplasmic NADH is metabolically interchangeable. O c. NADPH generated from the pentose phosphate pathway is used for the regeneration of glutathione to its reduced state. O d. NADPH generated from the pentose phosphate pathway is used for lipid synthesis. Clear my choicearrow_forwardWhich of the following statements is TRUE? Select one: A. Lactic acid is a product of aerobic respiration; ethyl alcohol is a product of fermentation. B. Oxidation is the loss of electrons; reduction is the gain of electrons. C. Oxygen is a product of cellular respiration; carbon dioxide is a product of photosynthesis. D. Glucose is a product of aerobic respiration; lactic acid is a product of anaerobic respiration.arrow_forwardWhen completely metabolized, a hexose molecule yields the energy of 36 ATP molecules. Which step of this chemical process yields the most ATP? A. Activation of glucose B. C. D. Phosphorylation of glyceraldehyde 3-phophate Oxidative decarboxylation of pyruvate Metabolism of the two C₂ fragments in common metabolic pathwayarrow_forward
- 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.arrow_forwardWhich of these statements about lactate dehydrogenase is true? a.It is a protein. b.It oxidizes lactic acid. c.It reduces another molecule (pyruvic acid). d.All of these are true.arrow_forwardWhich of the following statements is correct? a. Glycolysis and Krebs cycle produce ATP in substrate level phosphorylation b. Glycolysis and Krebs cycle produce ATP in oxidative level phosphorylation. c. Glycolysis and pyruvate oxidation produce ATP in substrate level phosphorylation. d. Glycolysis and pyruvate oxidation produce ATP in oxidative level phosphorylation.arrow_forward
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