Welcome to this MCQ on amino acids, which is a key topic for the NEET exam. Proteins are made up of amino acids, and it’s important to understand their properties and structures to understand many biological processes. In this MCQ, you will be tested on what you know about amino acids, such as their structure, how they are grouped, and what they do in the body.
This MCQ on amino acids will help you figure out how much you know about amino acids and where you need to learn more. So, let’s start and see how much you know about amino acids.
MCQ on Amino Acids
1. Which of the following is NOT a component of an amino acid?
a) Amino group
b) Carboxyl group
c) Hydroxyl group
d) R-group
2. How many standard amino acids are there?
a) 20
b) 22
c) 25
d) 30
3. Which amino acid is known as the “building block of proteins”?
a) Glycine
b) Alanine
c) Proline
d) Leucine
4. Which of the following is an essential amino acid?
a) Glutamic acid
b) Tyrosine
c) Lysine
d) Serine
5. Which amino acid is responsible for the red color of blood?
a) Glutamine
b) Histidine
c) Methionine
d) Valine
6. Which of the following is a non-polar amino acid?
a) Serine
b) Cysteine
c) Tyrosine
d) Valine
7. Which amino acid is commonly used synthesize the serotonin?
a) Tryptophan
b) Methionine
c) Aspartic acid
d) Arginine
8. Which amino acid has a sulfur-containing side chain?
a) Arginine
b) Lysine
c) Methionine
d) Glutamic acid
9. Which of the following is a basic amino acid?
a) Leucine
b) Histidine
c) Phenylalanine
d) Asparagine
10. Which amino acid is important in the formation of collagen?
a) Proline
b) Asparagine
c) Tyrosine
d) Glutamic acid
11. Which of the following amino acids is NOT found in proteins?
a) Ornithine
b) Glutathione
c) Selenocysteine
d) Cystine
12. Which amino acid is involved in the formation of the antioxidant glutathione?
a) Cysteine
b) Tryptophan
c) Phenylalanine
d) Histidine
13. Which amino acid is involved in the synthesis of the dopamine?
a) Tyrosine
b) Asparagine
c) Methionine
d) Glutamine
14. Which of the following is a polar, uncharged amino acid?
a) Arginine
b) Aspartic acid
c) Serine
d) Histidine
15. Which amino acid forms protein disulfide bonds?
a) Cysteine
b) Proline
c) Glycine
d) Valine
Answers
c) Hydroxyl group
a) 20
a) Glycine
c) Lysine
b) Histidine
d) Valine
a) Tryptophan
c) Methionine
b) Histidine
a) Proline
b) Glutathione
a) Cysteine
a) Tyrosine
c) Serine
a) Cysteine