NAME Dr. Amin F. Majdalawieh iven that pyruvate kinase converts phosphoenolpyruv
ID: 132266 • Letter: N
Question
NAME Dr. Amin F. Majdalawieh iven that pyruvate kinase converts phosphoenolpyruvate into pyruvate in reaction 10 in glycolys then low [AMP] is expected to A. Enhance pyruvate kinase activity B. Inhibit pyruvate kinase activity C. Have no effect on pyruvate kinase activity D. Enhance pyruvate kinase activity acrobically and inhibit it anaerobically E. Inhibit pyruvate kinase activity aerobically and enhance it anaerobically 20. Which of the following is NOT a polysaccharide? A. Amylose B. Amylopectin C. Glycogen D. Cellulose E. None of the above 21. Amylopectin is broken down into by a-amylase before final re A. Amylose B. Starch C. O-glycosidic linkages D. Maltose E ate (GaP) 22. The most important second messenger that transmits a hormonal signal in eukaryotic cells is A. Glycogen phsphorylase b B. Glycogen phsphorylase b kinase C. Epinephrine D. cAMP E.02 Glycogen phosphorylase b can be activated by high cellular concentration of A. ATP B. AMP C. Mg D. Epinephrine E. Heme 23. Which of the following molecules is an electron carrier in i A. FAD B. NAD+ C. ATP D. ADP E. NADH 24. ts reduced state? -rich electron carriers can be yielded ers can be yielded from one round of the citric acid cycle 25. How many reduced energy per a glucose molecule? A. 2 B. 3 C. 4 D. 8 E. None of the aboveExplanation / Answer
19. Option C is correct.
AMP is an activator of pyruvate kinase. So, low levels of AMP inhibit pyruvate kinase activity.
20. Option E is correct.
All the given compounds are polysaccharides.
21. Option D is correct.
Amylopectin is broken down into maltose by Amylase.
22. Option D is correct.
cAMP is a major secondary messenger in eukaryotic cells.
23. Option B is correct.
Glycogen phosphorylase is allosterically activated by AMP
24. Option E is correct.
25. Option C is correct (3 NADH and 1 FADH2)
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