Metabolism MCQS 

which one  is  example of an anabolic reaction?

a. Glycolysis

b. The breakdown of glycogen to glucose

c. The making of glucose from non- carbohydrates precursors

d. The citric acid cycle

Answer: c. The making of glucose from non-carbohydrates   precursors

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Which of the following is the primary site of gluconeogenesis?

a. Liver

b. Muscle

c. Adipose tissue

d. Brain

Answer: a. Liver

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Which of the following is a coenzyme required for pyruvate dehydrogenase?

a. NAD+

b. FAD

c. CoA

d. ATP

Answer: c. CoA

 

Which of the following is the primary storage form of glucose in animals?

a. Glycogen

b. Starch

c. Cellulose

d. Chitin

Answer: a. Glycogen

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What is the net ATP yield of glycolysis?

a. 1 ATP

b. 2 ATP

c. 4 ATP

d. 38 ATP

Answer: b. 2 ATP

 

Which of the following is the primary function of the citric acid cycle?

a. To produce ATP

b. To produce NADH and FADH2

c. To convert pyruvate to acetyl-CoA

d. To produce glucose

Answer: b. To produce NADH and FADH2

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Which one  of the following is an example of a catabolic reaction?

a. Protein synthesis

b. Glycogen synthesis

c. Lipogenesis

d. Beta-oxidation of fatty acids

Answer: d. Beta-oxidation of fatty acids

 

Which of the following is the primary source of energy during short-term, high-intensity exercise?

a. Glucose

b. Fatty acids

c. Ketone bodies

d. Amino acids

Answer: a. Glucose

 

Which of the following is the primary hormone responsible for promoting glycogen breakdown and gluconeogenesis?

a. Insulin

b. Glucagon

c. Epinephrine

d. Cortisol

Answer: b. Glucagon

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Which of the following is the process by which glucose is converted to pyruvate in the absence of oxygen?

a. Glycolysis

b. Oxidative phosphorylation

c. Beta-oxidation

d. Fermentation

Answer: d. Fermentation

 

Which of the following is the process by which fatty acids are broken down to acetyl-CoA?

a. Glycolysis

b. The citric acid cycle

c. Beta-oxidation

d. Lipogenesis

Answer: c. Beta-oxidation

 

Which of the following is the primary hormone responsible for promoting glucose uptake into cells?

a. Insulin

b. Glucagon

c. Epinephrine

d. Cortisol

Answer: a. Insulin

 

Which of the following is the process by which amino acids are converted to glucose?

a. Glycolysis

b. The citric acid cycle

c. Gluconeogenesis

d. Beta-oxidation

Answer: c. Gluconeogenesis

 

Which of the following is the process by which ATP is synthesized from the energy released by the electron transport chain?

a. Glycolysis

b. Oxidative phosphorylation

c. Beta-oxidation

d. Fermentation

Answer: b. Oxidative phosphorylation

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