Amino Acids

Question 1

Proteins are branched polymers of amino acids linked together by peptide bonds . True or false

Answer 1

No. In biomolecules only carbohydrates, proteins and nucleic acids make polymers. Out of which protein and nucleic acid form unbranched polymers.

Question 2

The specific sequence of amino acid in a protein is randomly decided according to the need of the body. True or false.

Answer 2

No, the specific sequence of amino acid in a protein is predecided by the genetic code.

Question 3

General structure of amino acid.

Question 4

Is amino acid optically active?

Answer 4

Yes , due to the presence of chiral carbon.

Question 5

In all living organisms, amino acid in protein synthesis are mostly in which absolute configuration?

Answer 5

All amino acids mostly occur in L form .

Question 6

More than 300 amino acids are found in nature however protein synthesis occurs almost exclusively from 20 amino acids . True or false

Answer 6

True .