Question

All amino acids in proteins are Select one: O a. (R)-amino acids b. chiral c. alpha-amino acid O 0 d. acidic

Answer 1

All amino acids in proteins are
c. Alpha-amino acid

Explaination : The amino acids in proteins are α-amino acids, which means the amino group is attached to the α-carbon of the carboxylic acid.
An α-amino acid consists of a central carbon atom, called the α carbon, linked to an amino group, a carboxylic acid group, a hydrogen atom, and a distinctive R group. The R group is often referred to as the side chain.

• (R)- Amino acid is not the answer becauce most most amino acids found in protein are actually (L)-amino acids

• Most amino acids found in protein are chiral but there is an exception. which is Glycine. Glycine is the only amino acid whose α-carbon is not chiral. So this cannot be the answer
• All amino acids found in protein are not acidic in nature. Some basic amino acids are Argenine, Lysine, Histidine