MCQs on Ketogenesis Past Year Paper Higher Questions and Answers
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Ketogenesis is the process of catabolism of fatty acid and ketogenic amino acids. Energy is released in the process and ketone bodies are also produced. Excess ketone bodies may lead to ketoacidosis. Ketogenesis is the preferred mode to derive energy, when there is less amount of carbohydrate in the diet, e. g. during starvation or fasting.
1. Brain derives energy from ketogenesis, if glucose is
(a) less
(b) high
(c) constant
(d) zero
Answer: A
2. Which of the following amino acids are exclusively ketogenic?
(a) Asparagine
(b) Threonine
(c) Proline
(d) Leucine
Answer: D
3. Activated fatty acid is transported to mitochondria from cytosol by
(a) Creatinine
(b) Carnitine
(c) Creatine
(d) Clathrin
Answer: B
4. Ketone bodies are formed from
(a) Acetone
(b) Acetyl CoA
(c) Acetoacetate
(d) HCl
Answer: B
5. When the rate of synthesis of ketone bodies is more than its utilization, it leads to
(a) color blindness
(b) diabetes
(c) anemia
(d) ketonemia
Answer: D
6. Urine of a person contains abnormal quantities of ________ during prolonged fasting
(a) amino acids
(b) ketones
(c) glucose
(d) fats
Answer: B
7. Ketogenesis occurs primarily in ________ of liver cells
(a) Mitochondria
(b) Cytosol
(c) Endoplasmic reticulum
(d) Golgi apparatus
Answer: A
8. Organs that can utilize energy formed in ketogenesis are
(a) Brain
(b) Skeletal muscle
(c) Heart
(d) All of the above
Answer: D
9. Which of the following are ketone bodies
(a) acetoacetate
(b) acetone
(c) β-hydroxy butyrate
(d) all of the above
Answer: D
10. Which of the following produce acetyl CoA directly
(a) Lysine
(b) Phenylalanine
(c) Isoleucine
(d) Alanine
Answer: C