105. Starting with one molecule of maltotriose, which consists of 3 units of glu

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105. Starting with one molecule of maltotriose, which consists of 3 units of glucose, the NET products of GLYCOLYSIS are A. 6 NAD*, 6 pyruvate, and 6 ATP B. 6 NADH, 6 pyruvate, and 12 ATP C. 6 NADH, 6 pyruvate, and 6 ATP D. 6 FADH2, 6 pyruvate, and 12 ATP E. 18 CO2. 30 ATP, and 6 pyruvate 106. How many oxygen molecules (02) are required each time a molecule of glucose is completely oxidized to carbon dioxide and water via aerobic respiration? A. 1 B. 3 C. 6 D. 12 E. 30 107. The drug 2,4-dinitrophenol (DNP) makes the inner mitochondrial membrane leaky for protons. What would be the effect of incubating isolated mitochondria in a solution of DNP? A. The electron transport chain would stop B. Oxygen would no longer be reduced to water C. Mitochondria would show a burst of increased ATP synthesis D. Production of ATP would stop E. Mitochondria would switch from fermentation to glycolysis Carbon dioxide (Co2) is released during which of the following stages of cellular respiration? A. glycolysis and the oxidation of pyruvate to acetyl CoA B. oxidative phosphorylation and fermentation C. the citric acid cycle and oxidative phosphorylation D. oxidation of pyruvate to acetyl CoA and the citric acid cycle E. fermentation and glycolysis 108. 109. The TCA cycle encompasses the following reaction catalyzed by malate dehydrogenase: Malate + NAD Oxaloacetate NADH H Which of the molecules represents the oxidant? A. Malate B. NADH C. Oxaloacetate D. NAD E. protorn 110. Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? A. denaturation of the enzyme B. competitive inhibition C. Insufficient cofactors D. saturation of the enzyme activity E. allosteric inhibition 111. During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a G 0.20 kJmol. lf you double the amount of enzyme in the reaction, what will be the AG for the new reaction? A 40 kJ/mol B -20 kJ/mol C. 0 kJ/mol D. +20 kJ/mol E. +40 kJ/mol Page 15 of 22

Explanation / Answer

One molecule of glucose gives a net yield of 2NADH, 2 pyruvate and 2 ATP. So, 3 molecules of glucose will give 6 NADH, 6 pyruvate and 6 ATP molecules.

Therefore, C is the correct answer.

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