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- Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2Which of the following statements does NOT explain the Krebs cycle? a. It produces 6 carbon dioxide in the breakdown of a molecule of glucose. b. t produces 6 NADH from the breakdown of a molecule of glucose. c.It produces 2 ATP molecules in substrate level phosphorylation. d.It produces 2 FADH2 in the breakdown of a molecule of glucose.The FADH2 formed during the Krebs cycle enters the electrontransport system at which site?a. NADH dehydrogenase b. complex II c. complex IV d. ATP synthase
- Which of the following processes is mediated by the F0F1 ATP Synthase complex? a NADH oxidation b Osmosis c Substrate level phosphorylation d Conversion of potential energy to mechanical energy to chemical energyduring oxidative phosphorylation, one FADH2 produced by the krebs cycle will produce a. 1 ATP b. 2 ATP c. 3 ATP d. 4 ATP e. 5 ATPWhich of the following is incorrect about the ATP synthase mechanism? a. It explains how ATP is hydrolyzed into ADP and Pi b. At any moment, each catalytic site has a different conformation and binding affinity c. It is called the binding change mechanism d. It involves rotation-driven conformational changes that alter the affinity of each catalytic subunit
- Which of the following statements is CORRECT regarding the pentose phosphate pathway? a. It has two reactions that produce NADPH in its oxidative phase. b. The pentose phosphate pathway is also called hexose diphosphate shunt. c. The pathway generates FADH2. d. NAPH is produced in the non-oxidative phase of the pathway.Consider the function of the cofactor FAD. Which of the following makes it unique (different) from NAD+? Select all that apply. a. Can facilitate single electron transfers b. Is associated with an enzyme and not a mobile electron carrier c. Serves to facilitate redox reactions d. s an electron carrier in the TCA cycleWhich of the following statements is NOT true about Krebs Cycle? a. Krebs cycle is composed of 8-step enzymatic reactions. b. For every CO2 released in the cycle, NADH is produced. c. Succinyl-CoA allows the phosphorylation of GDP (Guanosine Diphosphate) d. The carbon atoms from the glucose that enters the cycle are released from the mitochondrion immediately.
- What effect will increasing the number of c subunits in ATP synthase have on the P:O ratio? A. It will increase for both NADH and FADH2. B. It will increase for NADH and decrease for FADH2. C. It will decrease for NADH and increase for FADH2. D. It will decrease for both NADH and FADH2. E. It will remain unchanged for both NADH and FADH2.Of eight enzymes in the CAC, why is the succinate dehydrogenase complex unique? Because it is a component of the electron transport chain Because it catalyzes an oxidative reaction Because it is an integral membrane protein All of the above Only A and CWhich of the following is not a product of the citric acid cycle? a. FADH2 b. NADH c. AMP d. CO2