Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 6, Problem 7TYK
In which of the following is the first molecule becoming reduced to the second molecule?
a. pyruvate → acetyl CoA
b. pyruvate → lactate
c. glucose → pyruvate
d. NADH + H+ → NAD+ + 2H
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The aspartate–malate shuttle transfers electrons from cytoplasmic NADH to the electron transport system. Which of the following molecules is not directly involved in this pathway? a. malate b. oxaloacetate c. citrate d. α-ketoglutarate
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b. Malate + pyruvate → oxaloacetate + lactate
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d. Pyruvate + NADH + H+ → lactate NAD+
e. Acetoacetate + NADH + H+ → β-hydroxybutyrate + NAD+
f. Malate + NAD+ → oxaloacetate + NADH + H+
Chapter 6 Solutions
Campbell Biology: Concepts & Connections (8th Edition)
Ch. 6 - Fill in the blanks in this summary map to help you...Ch. 6 - A biochemist wanted to study how various...Ch. 6 - In glycolysis, _____ is oxidized and _____ is...Ch. 6 - Which of the following is the most immediate...Ch. 6 - Which of the following is a true distinction...Ch. 6 - The poison cyanide binds to an electron carrier...Ch. 6 - In which of the following is the first molecule...Ch. 6 - Which of the three stages of cellular respiration...Ch. 6 - Compare and contrast fermentation as it occurs in...Ch. 6 - Prob. 10TYK
Ch. 6 - Prob. 11TYKCh. 6 - Prob. 12TYKCh. 6 - In the citric acid cycle, an enzyme oxidizes...Ch. 6 - ATP synthase enzymes are found in the prokaryotic...Ch. 6 - 15. SCIENTIFIC THINKING Several studies have found...Ch. 6 - For a short time in the 1930s, some physicians...Ch. 6 - Explain how the mechanism of brown fat metabolism...
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- Explain the role of the coenzymes NAD + and NADH in each reaction. a. pyruvate-------> acetyl CoA b. pyruvate-------> lactate c. pyruvate--------> ethanolarrow_forwardIn the reaction catalyzed by malate dehydrogenase, which of the following molecules is classified as the reduced donor? a. Malate b. Oxaloacetate c. Fumerate d. FAD e. FADH2 f. NAD+ g. NADHarrow_forwardDuring strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD+ if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is: a. dihydroxyacetone phosphate → glycerol 3-phosphate b. glucose 6-phosphate → fructose 6-phosphate c. isocitrate → α-ketoglutarate d. oxaloacetate → malate e. pyruvate → lactatearrow_forward
- Which citric acid cycle intermediate can move from the mitochondria into the cytoplasm to become the activator of fatty acid synthesis? Select one: a. Succinyl-CoA b. Fumarate c. Citrate d. Malatearrow_forwardWhich of the following is the third step of Citric Acid Cycle? Select one: a. Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH b. Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide c. Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH d. alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH e. Succinate is oxidized to become fumarate forming FADH2 f. Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate) g. Citrate is rearranged to become Isocitrate h. Malate is oxidized to become oxaloacetate forming NADH i. Fumarate is combined with water to become Malatearrow_forwardWhich of the following reactions generates ATP? Select one: a. Phosphoenolpyruvate to pyruvate b. Fructose 6-phosphate to Fructose 1,6-bisphosphate c. Glucose to Glucose 6-Phosphate d. Glucose 6-phosphate to Fructose 6-phosphatearrow_forward
- The first roadblock to overcome in the synthesis of glucose from pyruvate is which of the following reactions? a. Fructose 6-P to Fructose 1,6-bis-P b. Pyruvate to Oxaloacetate c. Pyruvate to Phosphoenolpyruvate d. Phosphoenolpyruvate to Pyruvatearrow_forwardExplain why the hydrolysis of the following compounds releases energy. A. phosphoenol pyruvate B. 1,3-diphosphoglycerate C. succinyl CoAarrow_forwardWhich of the following events occurs in Oxidative Phosphorylation? A. A Glucose molecule is cut in half B. Two molecules of Pyruvate are made C.The bonds in a Glucose molecule are broken D.Inorganic Phosphate is added to ADParrow_forward
- Which of the following produces the highest number of reducing equivalent molecules per mole of a saturated 10 carbon fatty acid chain in aerobic conditions? A. Oxidation of Malate to Oxaloacetate B. the Electron Transport Chain C. Oxidation of a-Ketoglutarate to Succinyl-COA D. the B-Oxidation "spiral"arrow_forwardWhich of the following reactions would be inhibited in the presence of large amounts of an egg white protein that binds and sequesters biotin? a. Pyruvate to Lactate b. Pyruvate to Alanine c. Phosphoenolpyruvate to Pyruvate d. Pyruvate to oxaloacetatearrow_forwardDuring which of the following conversions in Glycolysis is ATP generated? (more than one answer) a. 1,3-bisphophoglycerate to 3-phosphoglycerate b. Phosphoenolpyruvate to Pyruvate c. Fructose 6-Phosphate to Fructose 1,6-bisphosphate d. Glucose to Glucose 6-phosphatearrow_forward
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