Explore topic-wise MCQs in Life Sciences.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the biosynthetic source of all steroid hormones?

A. Cholesterol
B. Ketone bodies
C. Carbohydrate
D. Protein
Answer» B. Ketone bodies
2.

Name the energy source of the brain during starvation?

A. Fat
B. Ketone bodies
C. Protein
D. Lipids
Answer» C. Protein
3.

NAME_THE_ENERGY_SOURCE_OF_THE_BRAIN_DURING_STARVATION??$

A. Fat
B. Ketone bodies
C. Protein
D. Lipids
Answer» C. Protein
4.

What is the biosynthetic source of all steroid hormones?$

A. Cholesterol
B. Ketone bodies
C. Carbohydrate
D. Protein
Answer» B. Ketone bodies
5.

What is the outcome of the accumulation of acetyl-CoA in the mitochondria of the liver?

A. It is used as an energy source
B. It has broken down in to free fatty acids
C. It gets converted to oxaloacetate
D. It forms ketone bodies
Answer» E.
6.

Triacylglycerol packed with the apolipoprotein and cholesterol in lipoprotein aggregate is called_________

A. Chylomicrons
B. VLDL
C. HDL
D. LDL
Answer» B. VLDL
7.

Mark the INCORRECT statement about the bile salt.

A. These are detergent substances
B. Stored in the gallbladder
C. It is hydrophobic in nature
D. It is made up of cholic acid
Answer» D. It is made up of cholic acid
8.

Which of the following hormone is not used in the hydrolysis of triacylglycerol into the fatty acids in adipose tissues?

A. Epinephrine
B. Norepinephrine
C. Glucagon
D. Insulin
Answer» E.
9.

What is lipolysis?

A. Hydrolysis of triacylglycerol
B. Formation of lipids
C. Breakdown of ketone bodies
D. Formation of ketone bodies
Answer» B. Formation of lipids
10.

Which of the following enzyme is not used in the synthesis of triacylglycerol?

A. Glycerol-3-phosphate acyltransferase
B. Acylglycerophophate acyltransferase
C. Phosphatidic acid phosphohydrolase
D. Glycogen phosphorylase
Answer» E.
11.

Which of the following pathway is not used for triacylglycerol synthesis?

A. Glycerol 3-phosphate pathway
B. Glyoxylate pathway
C. Monoacylglycerol pathway
D. Kennedy pathway
Answer» C. Monoacylglycerol pathway
12.

Triacylglycerol stored in the body as cytoplasmic lipid droplets.

A. True
B. False
Answer» B. False
13.

Name the most active organs in the animal body which have the ability to synthesize triacylglycerol?

A. Spleen
B. Kidney
C. Liver and intestines
D. Adipose tissues
Answer» D. Adipose tissues