Question

An amino acid is a :

• A. Substituted methane
• B. Substituted ethane
• C. Any acid having amino group
• D. Derivative of indolacitic acid

Answer 1

The correct option is A Substituted methane

Amino acid, any of a group of organic molecules that consist of a basic amino group, an acidic carboxyl group, and a unique organic side chain. Amino acids are molecules that combine to form proteins. Amino acids and proteins are the building blocks of life.

Amino acids are substituted methane molecules the four substituent groups attached on the alpha carbon provide the four valency positions.
So, the correct answer is "option A"