MCQS gluconeogenesis

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What is gluconeogenesis?

A. the  metabolic pathway which  breaks down glucose

B. A metabolic pathway that synthesizes glucose from non-carbohydrate sources

C. A metabolic pathway that synthesizes carbohydrates from glucose

D. A metabolic pathway that produces lactate from glucose

Answer: B

                             

Where does gluconeogenesis occur primarily in the body?

A. Muscle tissue

B. Adipose tissue

C. Liver

D. Pancreas

Answer: C

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What are the non-carbohydrate sources used for gluconeogenesis?

A. Fatty acids and ketones

B. Amino acids and lactate

C. Nucleotides and lipids

D. Proteins and glycogen

Answer: B

 

What is the starting point for the gluconeogenesis pathway?

A. Pyruvate

B. Oxaloacetate

C. PEP

D. Fructose-1,6-bisphosphate

Answer: C

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What is the enzyme that converts pyruvate into oxaloacetate in gluconeogenesis?

A. Pyruvate kinase

B. Pyruvate carboxylase

C. Pyruvate dehydrogenase

D. Pyruvate decarboxylase

Answer: B

 

What is the enzyme that converts oxaloacetate into PEP in gluconeogenesis?

A. PEP carboxylase

B. PEPCK

C. Fructose-1,6-bisphosphatase

D. Glucose-6-phosphatase

Answer: B

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What is the enzyme that converts fructose-1,6-bisphosphate into fructose-6-phosphate in gluconeogenesis?

A. Fructose-1,6-bisphosphatase

B. Aldolase

C. Triose phosphate isomerase

D. Glucose-6-phosphatase

Answer: A

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What is the enzyme that converts glucose-6-phosphate into glucose in gluconeogenesis?

A. Glucose-6-phosphatase

B. Aldolase

C. Triose phosphate isomerase

D. Fructose-1,6-bisphosphatase

Answer: A

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What is the process that converts lactate into glucose in gluconeogenesis?

A. Reverse glycolysis

B. Gluconeogenic pathway

C. Lactate dehydrogenase pathway

D. Pyruvate carboxylase pathway

Answer: A

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What is the molecule that glycerol is converted into before it can enter the gluconeogenesis pathway?

A. Glucose

B. Fructose-6-phosphate

C. DHAP

D. Glyceraldehyde-3-phosphate

Answer: C

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What is the energy currency used in the conversion of pyruvate into oxaloacetate in gluconeogenesis?

A. NADH

B. ATP

C. GTP

D. FADH2

Answer: B

 

What is the energy currency used in the conversion of glycerol into DHAP in gluconeogenesis?

A. NADH

B. ATP

C. GTP

D. FADH2

Answer: B

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What is the process that regulates gluconeogenesis in response to changes in energy needs?

A. Glycolysis

B. Glucose uptake

C. Insulin secretion

D. Hormonal regulation

Answer: D