BIOMOLECULES AND ENZYMES

BIOLOGY

AMINO ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many essential amino acids are there?
A
3
B
9
C
12
D
20
Explanation: 

Detailed explanation-1: -The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Detailed explanation-2: -Amino acids are required for the synthesis of body protein and other important nitrogen-containing compounds, such as creatine, peptide hormones, and some neurotransmitters. Although allowances are expressed as protein, a the biological requirement is for amino acids.

Detailed explanation-3: -The essential amino acids are arginine (required for the young, but not for adults), histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Detailed explanation-4: -Meat, poultry, eggs, dairy, and fish contain all nine essential amino acids. This means they are ‘complete’ sources of protein.

Detailed explanation-5: -Of these 20 amino acids, nine amino acids are essential: Phenylalanine. Valine. Tryptophan.

There is 1 question to complete.