Question

Q1. What are the isomers of amino acids and what are natural amino acids?
Q2. what is the significance of -SH groups in proteins? and what are proteins made up of?
Q3. what is peptide bond? ​

Answer 1

Answer:

Alpha-amino acids are the common natural forms of amino acids. With the exception of glycine, other natural amino acids adopt the L configuration. While L-amino acids represent all of the amino acids found in proteins during translation in the ribosome.

Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.

A peptide bond is an amide type of covalent chemical bond linking two consecutive alpha-amino acids from C1 (carbon number one) of one alpha-amino acid and N2 (nitrogen number two) of another, along a peptide or protein chain.