Question

Assertion (A): Glycine need not be taken in diet.

Reason (R): Glycine is a non-essential amino acid.

• A. Both A and R are wrong statements.
• B. A is correct, and R explains A.
• C. A is correct, but R is wrong.
• D. A is wrong, but R is right.

Answer 1

The correct option is B

A is correct, and R explains A.

The explanation for the assertion statement :

1. Amino acids, which can be synthesized in the body, are known as non-essential amino acids.
2. Glycine is an example of non-essential amino acid.
3. Glycine should not be taken by diet as it can be synthesized in our body and is a non-essential amino acid.

The explanation for the reason statement:

1. In humans, animals, and many mammals, glycine is the most significant and straightforward non-essential amino acid.
2. A number of significant metabolites, including glutathione, porphyrins, purines, haem, and creatine, are precursors to glycine.
3. Glycine is a non-essential amino acid because it is not made by our body.
4. So for our body to get glycine, we need to take that through diet.
5. In addition to its multiple functions as an antioxidant, anti-inflammatory, cryoprotective, and immunomodulatory substance in peripheral and neurological tissues, glycine functions as a neurotransmitter in the central nervous system.
6. Glycine is often produced from choline, serine, hydroxyproline, and threonine through interorgan metabolism, particularly in the kidneys and liver.

Final answer: Both the assertion and reason are correct, hence A is correct, and R explains A.