The University of Oklahoma, Norman CHEM 3653 Quiz-18: 1)The TCA cycle metabolite that inhibits PFK1 in glycolysis is ……………. . Citrate Cori cycle moves …………. From muscle tissue to the liver where it undergoes gluconeogenesis to make glucose. Lactate Glucokinase converts glucose to glucose 6-phosphate when the rate of glycolysis is decreased. a. True. b. False In adipose tissues (fat tissues), fructose can enter the glycolytic pathway through phosphorylation to fructose-6-phosphate by fructokinase. phosphorylation to fructose-1-phosphate by fructokinase. c. phosphorylation to fructose-6-phosphate by hexokinase. d. phosphorylation to fructose-1-phosphate by galactokinase. e. Fructose is isomerized to glucose, which enters the pathway. In two turns of the citrate cycle, how many electrons are transferred from the citrate cycle intermediates to NAD+ and FAD? 4 8 12 d. 16 Which enzyme(s. in the citrate cycle catalyze(s. the oxidative decarboxylation reaction(s)? (Choose all the correct

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The University of Oklahoma, Norman CHEM 3653 Quiz-18: 1)The TCA cycle metabolite that inhibits PFK1 in glycolysis is ……………

Chemistry Jul 26, 2021

The University of Oklahoma, Norman

CHEM 3653

Quiz-18:

1)The TCA cycle metabolite that inhibits PFK1 in glycolysis is ……………. .

1. Citrate

Cori cycle moves …………. From muscle tissue to the liver where it undergoes gluconeogenesis to make glucose.
1. Lactate

Glucokinase converts glucose to glucose 6-phosphate when the rate of glycolysis is decreased.

a. True.

b. False

In adipose tissues (fat tissues), fructose can enter the glycolytic pathway through

1. phosphorylation to fructose-6-phosphate by fructokinase.
2. phosphorylation to fructose-1-phosphate by fructokinase.

c. phosphorylation to fructose-6-phosphate by hexokinase.

d. phosphorylation to fructose-1-phosphate by galactokinase.

e. Fructose is isomerized to glucose, which enters the pathway.

In two turns of the citrate cycle, how many electrons are transferred from the citrate cycle intermediates to NAD+ and FAD?
1. 4
2. 8
3. 12

d. 16

Which enzyme(s. in the citrate cycle catalyze(s. the oxidative decarboxylation reaction(s)? (Choose all the correct answers)
1. pyruvate dehydrogenase
2. citrate synthase

c. isocitrate dehydrogenase

d. alpha-ketoglutarate dehydrogenase

e. No correct answer.

How many cytosolic NADH are produced during glycolysis, pyruvate dehydrogenase and TCA cycle?
1. 0
2. 1

c. 2

Which one of the following proteins is not an integral membrane protein?
1. NADH-Q oxidoreductase
2. Q-Cytochrome oxidoreductase
3. Succinate dehydrogenase

d. Cytochrome C

e. Cytochrome C oxidase

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