Question

16 Which step consists of a phosphorylation reaction in which ATP is the phosphate source? b B с с d D е Е 17 Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis? a 0% b 2% c 10% d 38% @ 100% 18 In addition to ATP, what are the end products of glycolysis? a CO2 and H2O b CO2 and pyruvate NADH and pyruvate d CO, and NADH e H2O, FADH2, and citrate 19 In glycolysis, for each molecule of glucose oxidized to pyruvate 2 molecules of ATP are used and 2 molecules of ATP are produced. (b) 2 molecules of ATP are used and 4 molecules of ATP are produced. 4 molecules of ATP are used and 2 molecules of ATP are produced. d 2 molecules of ATP are used and 6 molecules of ATP are produced. e 6 molecules of ATP are used and 6 molecules of ATP are produced. 20 During cellular respiration, acetyl CoA accumulates in which location? a cytosol b mitochondrial outer membrane mitochondrial inner membrane d mitochondrial intermembrane space mitochondrial matrix 21 How many carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate? @ 2 b 4 c 6 d 8 e 10

Answer 1

16. The correct answer is "a) A". Step of conversion of glucose into Fructose-1,6-bisphosphate using 2 molecules of ATP consists of phosphorylation reaction.

17. The correct answer is "e) 100%". All the ATP synthesis occurs due to substrate level phosphorylation because, oxidative phosphorylation does not occur during glycolysis.

18. c) NADH and pyruvate.

19. b

20. e

21. a