Explore topic-wise MCQs in Biology.

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

1.

A nucleoside consists of _____

A. sugar, phosphate
B. base, phosphate
C. base, sugar
D. base, sugar, phosphate
Answer» D. base, sugar, phosphate
Discussion
2.

Which nitrogenous base is not found in RNA?

A. Guanine
B. Adenine
C. Thymine
D. Cytosine
Answer» D. Cytosine
Discussion
3.

Which of these makes up the cell membrane?

A. Peptidoglycans
B. Polysaccharides
C. Glycoproteins
D. Phospholipids
Answer» E.
Discussion
4.

Fats have higher melting points than oils. True or false?

A. True
B. False
Answer» B. False
Discussion
5.

Glycerol is also known as ______

A. dihydroxy butane
B. methyl butanol
C. trihydroxy propane
D. 3 propanol
Answer» D. 3 propanol
Discussion
6.

How many carbon atoms does arachidonic acid contain?

A. 16
B. 12
C. 18
D. 20
Answer» E.
Discussion
7.

How many carbon atoms does palmitic acid contain?

A. 16
B. 14
C. 18
D. 12
Answer» B. 14
Discussion
8.

Which of these statements is not true regarding amino acids?

A. The amino group is ionizable
B. The acidic group is ionizable
C. Structure remains same at different pH
D. Glycine is the simplest amino acid
Answer» D. Glycine is the simplest amino acid
Discussion
9.

Which of these amino acids is not aromatic?

A. Tyrosine
B. Methionine
C. Tryptophan
D. Phenylalanine
Answer» C. Tryptophan
Discussion
10.

Which of these is a neutral amino acid?

A. Valine
B. Histidine
C. Lysine
D. Aspartic acid
Answer» B. Histidine
Discussion
11.

Which of these is an amino acid with pH less than 7?

A. Valine
B. Lysine
C. Glutamic acid
D. Histidine
Answer» D. Histidine
Discussion
12.

Which amino acid has a hydroxy methyl group as R?

A. Tryptophan
B. Lysine
C. Serine
D. Leucine
Answer» D. Leucine
Discussion
13.

Which amino acid has a methyl group as R?

A. Serine
B. Glycine
C. Valine
D. Alanine
Answer» E.
Discussion