What is the ultimate electron acceptor in oxidative phosphorylation? a. Oxygen b

Question

What is the ultimate electron acceptor in oxidative phosphorylation? a. Oxygen b. Carbon dioxide c. Water d. ATPase 8. Cytochrome c a. transports electrons from Complex I to Complex II b. contains a heme prosthetic group c. is lipid soluble 9. Which of the following statements about complex I is true? a. Complex I contributes to the proton gradient b. Complex I catalyzes the transfer of electrons from NADH to cytochrome c c. Complex I is bound to the outer mitochondrial membrane 10. Which of the following reactions results in the production of a high-energy phosphatetransfer potential? a. Fructose-1,6 diphosphate to diydroxyacetone phosphate and 3-phosphoglyceraldehyde b. 3- phosphoglyceric acid to 2-phosphogfyceric acid to phosphoenol-pyruvic acid c. Dihydroxyacetone phosphate to 3-phosphoglyceraldehyde d. Glucose 6-phosphate to Fructose-6-phosphate 11. Which of the following answers would make this sentence correct? "Hexokinase... " a. catalyzes the conversion of glucose 6-phosphate into fructose 1, 6 bisphosphate b. requires Ca2^+ for activity c. uses inorganic phosphate to form glucose -1-phosphate d. catalyzes the transfer of a phosphoryl group to a variety of hexoses 12. The steps of glycolysis between glyceraldehyde 3-phosphate and 3-phosphoglycerate involve all of the following except: a. ATP synthesis b. utilization of inorganic phosphate (Pi) c. oxidation of NADH to NAD+ d. formation of 1,3-biphosphoglycerate kinase e. catalysis by phosphoglycerate kinase

Explanation / Answer

7) a. Oxygen accepts electron from NADP & oxygen is reduced to Water.

8 ) a. Transport electron from Copmlex 1 to ll

9 ) c. Bound to outer mitichondrial membrane.

10)

11 ) d. Catalyses the transfer of phosphoryl group to veriety of hexoses.

12 ) b. Utilisation of inorganic phosphates.

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