EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 7, Problem 2U
Which of the following processes is (are) required for the complete oxidation of glucose?
a. The Krebs cycle
b. Glycolysis
c. Pyruvate oxidation
d. All of the choices are correct.
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The rate limiting and committed step of the pentose phosphate pathway is catalyzed by which of the following enzymes?
A.
Glucose-6-phosphate dehydrogenase
B.
Hexokinase
C.
6-Phosphogluconate dehydrogenase
D.
Transketolase
Which of the following cofactors is NOT used by the pyruvate dehydrogenase complex?
a. NAD+
b. FAD
c. tetrahydrofolate
d. coenzyme A
Which of the following number of products from the Krebs Cycle is a manifestation of 4 pyruvate molecules generated from
glycolysis?
A. 2 ATP, 6 NADH, 2 FADH₂
B. 3 ATP, 9 NADH, 3 FADH₂
C. 4 ATP, 4 NADH, 4 FADH₂
D. 4 ATP, 12 NADH, 4 FADH₂
Chapter 7 Solutions
EBK BIOLOGY
Ch. 7 - Prob. 1UCh. 7 - Which of the following processes is (are) required...Ch. 7 - Which of the following is NOT a product of...Ch. 7 - Glycolysis produces ATP by a. phosphorylating...Ch. 7 - What is the role of NAD+ in the process of...Ch. 7 - The reactions of the Krebs cycle occur in the a....Ch. 7 - The electrons carried by NADH and FADH2 can be a....Ch. 7 - Prob. 1ACh. 7 - Prob. 2ACh. 7 - Prob. 3A
Ch. 7 - What is the importance of fermentation to cellular...Ch. 7 - Prob. 5ACh. 7 - Prob. 6ACh. 7 - Yeast cells that have mutations in genes that...Ch. 7 - Use the following table to outline the...Ch. 7 - Human babies and hibernating or cold-adapted...Ch. 7 - Recent data indicate a link between colder...
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- Which of the following citric acid cycle intermediates is decarboxylated during the operation of the cycle? A. More than one correct response B. No correct response C. Isocitrate D. Succinate E. Oxaloacetatearrow_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 enzymes possesses a catalytic mechanism extremely similar to that of the Pyruvate Dehydrogenase Complex? A. the isocitrate dehydrogenase B. the succinate dehydrogenase C. the alpha-ketoglutarate dehydrogenase D. the malate dehydrogenasearrow_forward
- Which of the following reactions will complete the breakdown of glucose? A. glycolysis B. beta-oxidation C. citric acid cycle D. OP with ETCarrow_forwardWhich of the following enzyme catalyzes the conversion of pyruvate to lactate? Select one: a. Lactate reductase b. Pyruvate reductase C. Lactate dehydrogenase d. Pyruvate dehydrogenasearrow_forwardWhich of the following enzymes is NOT required to glycogen synthesis? a. branching Enzymes b. UDP-glucose pyrophosphorylase c. glycogen synthase d. glycogen phosphorylasearrow_forward
- In the last step of glycolysis, phosphoenolpyruvate (PEP) is converted to pyruvate and during this reaction ATP is synthesized. Based on the fact that ATP is synthesized, which of the following enzymes would most likely catalyze this reaction? a. enolase b. pyruvate kinase c. aldolase d. pyruvate isomerase e. pyruvate dehydrogenasearrow_forwardWhich of the following enzymes is NOT operating during glycogenolysis? a. glycogen phosphatase b. glycogen phosphorylase c. glycogen debranching enzyme d. phosphoglucomutasearrow_forwardWhich of the following is a substrate for glycogen synthase? a. UTP-glucose b. Glucose 1-phosphate c. CDP-glucose d. UDP-glucosearrow_forward
- Which of the following is true concerning the function of lipoic acid in pyruvate metabolism? a. transfer of acetyl groups b. pyruvate decarboxylation c. conversion of pyruvate to lactate d. oxidation of FADH2 to yield NADHarrow_forwardWhich of the following enzymes is the key regulatory step in glycolysis? Phosphofructiokinase-1 is the answer. Explain? A. Phosphoglucose Isomerase B. Phosphofructokinase-1 C. Pyruvate Kinase D. Hexokiase E. Phosphofructokinase-2 ...Why is Phosphoglucose Isomerase wrong?arrow_forwardA decrease in blood glucose levels will, in the liver, lead to the inhibition, either directly or indirectly, of which of the following enzymatic activities? Select one: a. Lactate dehydrogenase b. Phosphofructokinase c. Pyruvate kinase d. Enolasearrow_forward
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