Question 4 The reason that pyruvate is reduced to lactate under vigorously contr

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Question 4 The reason that pyruvate is reduced to lactate under vigorously contracting muscle is because Question 4 options CA) lactate oxidation does not require molecular oxygen B) NADH is needed for further oxidation of lactate to CO2 and H2O NAD+ is needed for glucose oxidation to pyruvate vigorously contracting muscles lack oxaloacetate vigorously contracting muscles have too much oxaloacetate C D) C E) uestion 5 of phosphofructokinase-1 and its level concentration Fructose-2,6-bisphosphate is an increases in response to increasing Question 5 options: cA) inhibitor; pyruvate ) activator; pyruvate activator; glucose C D) inhibitor; glucose Question 6 Approximately when pyruvate is completely oxidized to CO2 and H2O. Question 6 options % of the releasable energy stored in glucose is released C A) C B) 34 C C) 95 C D) 64 None of these options 5

Explanation / Answer

(4) A

(5) B

(6) D

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