pyruvate either by respiration or fermentation. The main reason is that A. furth
ID: 268159 • Letter: P
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pyruvate either by respiration or fermentation. The main reason is that A. further breakdown of pyruvate is growth B. the amount of energy produced by glycolysis is growth C. adenylate charge must be maintained for cellular processes to occur D. the electron acceptor reduced during glycolysis must be regenerated necessary to generate carbon dioxide needed for cell insufficient to maintain cells and fuel cell dehydrogenase complex? 13. Which of the following applies to the reaction catalyzed by the pyruvate The process is highly exergonic and essentially irreversible in vivo. B. It takes place in the mitochondrion. C. It is an oxidative decarboxylation. D. The product is acetyl CoenzymeA. E. All of the above. occurs in the citric acid cycle in the reaction catalyzed by 14. One substrate level phosphorylation A a-ketoglutarate dehydrogenase B. succinate dehydrogenase. C. succinyl-CoA synthetase. D. isocitrate dehydrogenase. E. citrate synthase. 15. Which of the following statement is correct about glycolysis regulation. A. Enzymes that are regulated in glycolysis are hexokinase, PFK-1 and pyruvate B. Both ATP and Fructose 2,6-bisphosphate (F26-BP) are regulators for PFK-1. C. Pyruvate kinase is regulated via phosphorylation. D. All of the above. E. None of the above. 16. Which of the following could cause DNA damage? A. Thymine Dimerization B. base group deamination C. nucleotide depurination D. Guanine hydroxylation E. All of the above 17, Given the partial sequence of a peptides, lle-Leu-Trp-Ala-Asn-Arg-Met-Ser-His-Val-Leu-Phe-Ale which ts native conformation? amino acid residues would be expected to be on the solvent exposed surface once it folds into A. lle, Asn, Arg, Val B. Trp, Asn, His, Ala C. Asn, Arg, Ser, His D. Leu, Asn, Arg, Ser E. Ser, lle, His, PheExplanation / Answer
13)All the statements about pyruvate dehydrogenase complex are true. Hence the correct answer is (e).The pyruvate moves from cytosol to mitochondria and there it is decarboxylated in a irreversible manner to Acetyl co enzyme A.
14) Substrate level phosphorylation is catalyzed by succinyl coA synthetase.
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