Energy Yield from Nutrients Practice Questions

Question 1

Which amino acid can be utilized in both gluconeogenesis and ketogenesis?

Accepted Answer

Tyrosine

Answer

Leucine

Answer

Valine

Answer

Arginine

Question 2

Which two enzymes are required for the beta oxidation of polyunsaturated fatty acids (PUFA)?

Accepted Answer

Enoyl CoA isomerase and 2,4 Dienoyl CoA reductase

Answer

Dienoyl CoA isomerase and Enoyl CoA isomerase

Answer

Dienoyl CoA isomerase and 2,4 Dienoyl CoA reductase

Answer

Enoyl CoA isomerase and Enoyl CoA reductase

Question 3

Which of these is an example of anaplerotic reaction?

Accepted Answer

Pyruvate to oxaloacetate

Answer

Pyruvate to acetaldehyde

Answer

Pyruvate to lactic acid

Answer

Pyruvate to acetyl-CoA

Question 4

Which is the primary energy molecule that gives approximately 7.3 kcal/mol?

Accepted Answer

ATP

Answer

GTP

Answer

Glucose-6-phosphate

Answer

Creatine phosphate

Question 5

Which of the following is not a substrate for gluconeogenesis?

Accepted Answer

Leucine

Answer

Lactate

Answer

Propionate

Answer

Glycerol

Question 6

Which of the following is not a substrate for glucose formation?

Accepted Answer

Acetyl coenzyme A

Answer

Lactate

Answer

Glycerol

Answer

Alanine

Question 7

What is the effect of insulin administration on the respiratory quotient (RQ) in diabetes?

Accepted Answer

RQ decreases in Diabetes and increases with insulin administration.

Answer

RQ remains unchanged in Diabetes.

Answer

In diabetes, RQ increases with insulin administration.

Answer

RQ increases in Diabetes and decreases with insulin administration

Question 8

In beta-oxidation of fatty acids, carnitine is required for:

Accepted Answer

Transport of long chain fatty acid to mitochondrial inner layer

Answer

Conversion of long chain fatty acids to short chain fatty acids

Answer

Transport of long chain fatty acid across the outer mitochondrial membrane

Answer

Conversion of short chain fatty acids to medium chain fatty acids

Question 9

Which of the following statements BEST describes the net ATP production in glycolysis?

Accepted Answer

Glycolysis produces a net gain of 2 ATP per glucose molecule

Answer

Glycolysis produces 2 molecules of pyruvate

Answer

Hexokinase consumes ATP during glycolysis

Answer

Aldolase catalyzes the conversion of fructose-1,6-bisphosphate into two three-carbon molecules

Question 10

During a 100 m sprint which of the following is used by the muscle for meeting energy demands?

Accepted Answer

Phosphocreatine

Answer

Phosphofructokinase

Answer

Glucose 1 - phosphate

Answer

Creatine phosphokinase

Energy Yield from Nutrients — MCQs

Energy Yield from Nutrients — MCQs

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