Inquiry Into Life (16th Edition)
16th Edition
ISBN: 9781260231700
Author: Sylvia S. Mader, Michael Windelspecht
Publisher: McGraw Hill Education
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Textbook Question
Chapter 7, Problem 11A
Which of these is not true of the citric acid cycle?
a. The citric acid cycle includes the prep reaction.
b. The citric acid cycle produces ATP by substrate-level ATP synthesis.
c. The citric acid cycle occurs in the mitochondria.
d. The citric acid cycle produces two ATP per glucose molecule.
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Which of these is not true of the citric acid cycle?a. The citric acid cycle includes the prep reaction.b. The citric acid cycle produces ATP by substrate-level ATPsynthesis.c. The citric acid cycle occurs in the mitochondria.d. The citric acid cycle produces two ATP per glucose molecule.
Which of the following statements is true about the citric acid cycle
a. The Citric Acid Cycle is an 8-step cycle that produces the most electron carrier molecules throughout the process of cellular respiration.
b. In Citric Acid Cycle, both the acetyl group and coenzyme A of Acetyl CoA are combined to oxaloacetate.
c. In Citric Acid Cycle, glucose is only partially broken down and there are still remnants of glucose after this process.
d. The ATP produced during this process is via oxidative phosphorylation
Compare ATP production in the citric acid cycle to the electron transport chain, or aerobic respiration.
A. Both processes use oxidative phosphorylation.
B. Both processes use substrate-level phosphorylation.
C. The citric acid cycle uses substrate-level phosphorylation, and the electron transport chain uses oxidative phosphorylation.
D. The citric acid cycle uses oxidative phosphorylation, and the electron transport chain uses substrate-level phosphorylation.
Chapter 7 Solutions
Inquiry Into Life (16th Edition)
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. 7.2 - 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. 2CYP
Ch. 7.3 - Explain how ATP can continue to be produced in the...Ch. 7.3 - Describe the advantages and disadvantages of...Ch. 7.3 - Prob. 1QTCCh. 7.3 - Explain how fermentation acts as a NAD+ recycling...Ch. 7.3 - Describe the environmental conditions that would...Ch. 7.3 - Prob. 2CYPCh. 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 - While Figure 7B does not indicate the need for...Ch. 7.4 - Prob. 1CYPCh. 7.4 - Prob. 2CYPCh. 7.4 - Discuss why there is variation in the number of...Ch. 7 - Prob. S2.5BYBCh. 7 - Prob. S3.3BYBCh. 7 - Figure 6.3 How does the ATP cycle resemble a...Ch. 7 - Prob. 1ACh. 7 - Prob. 2ACh. 7 - Prob. 3ACh. 7 - Prob. 4ACh. 7 - Prob. 5ACh. 7 - 6. During glycolysis, what is the net production...Ch. 7 - Prob. 7ACh. 7 - Prob. 8ACh. 7 - Prob. 9ACh. 7 - Prob. 10ACh. 7 - Which of these is not true of the citric acid...Ch. 7 - Which of these is not true of the electron...Ch. 7 - The oxygen required by cellular respiration is...Ch. 7 - Prob. 1TCCh. 7 - Rotenone is a broad-spectrum insecticide that...Ch. 7 - Some fat-burning compounds accelerate the movement...
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- Which of the following is the second step of Citric Acid Cycle? Select one: a. Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH b. Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH c. alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH d. Malate is oxidized to become oxaloacetate forming NADH e. Fumarate is combined with water to become Malate f. Citrate is rearranged to become Isocitrate g. Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide h. Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate) i. Succinate is oxidized to become fumarate forming FADH2arrow_forwardWhen one acetyl CoA is processed through the citric acid cycle, how many times does each of the following events occur? a. A FAD molecule is a reactant. b. A CoA-SH molecule is produced. c. A dehydrogenase enzyme is needed for the reaction to occur. d. A C5 molecule is produced.arrow_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_forward
- Which of the following is incorrect about the fifth step (conversion of succinyl-CoA, GDP, and Pi to succinate and GTP) of the citric acid cycle? a. GTP is made because succinyl-CoA is a thioester b. It is not regulated c. It involves a "substrate level" phosphorylation of GDP d. It is irreversiblearrow_forwardA key enzyme of the Citric Acid Cycle is isocitrate dehydrogenase. It catalyzes the conversion of isocitrate to alpha ketoglutarate. Given your understanding of the Citric Acid Cycle, how is the activity of isocitrate dehydrogenase likely regulated? A. It is activated when fermentation starts. B. It is activated when the levels of NADH are low relative to NAD+. C. It is activated when levels of ATP are high relative to ADP. D. It is inhibited by high levels of pyruvate.arrow_forwardDuring cellular respiration, 60 molecules of CO2 were given off as waste. a. How many pyruvate molecules were produced in glycolysis? b. The total amount of ATP produced by complete cellular respiration would be? c. The amount of energy available (Net ATP) to cell as ATP would be?arrow_forward
- 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_forwardThe citric acid cycle is a series of 8 reactions that oxidizes the acetyl group of acetyl CoA to 2 molecules of CO2. The citric acid cycle needs охудen because? a. Oxygen is required to generate NADH and FADH2 O b. Oxygen is required to accept electrons from NADH and FADH2 in oxidative phosphorylation Oxygen is required to donate electrons when NAD+ and FAD are regeneratedarrow_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 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_forwardPhosphofructokinase is an important control enzyme in the regulation of cellular respiration. Which of the following statements correctly describes phosphofructokinase activity? a. It is inhibited by citrate, an intermediate of the citric acid cycle. b. It catalyzes a reaction which increases the rate of the overall pathway. c. It catalyzes an early step of glycolysis which has the lowest level of activation energy among the overall pathway. d. It is activated by ATP. e. It is inhibited by AMP.arrow_forwardWhat steps in the citric acid cycle have each of the following characteristics? a. The reaction generates FADH 2. b. The organic substrate is oxidized. c. The reaction utilizes NAD +. d. The reaction breaks a carbon–carbon bond.arrow_forward
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