Which of the following groups represents essential amino acids?
- AHistidine, isoleucine, leucine, lysine
- BAlanine, arginine, asparagine, aspartic acid
- CAlanine, isoleucine, leucine, lysine
- DGlycine, proline, serine, and tyrosine
Solution & Step-by-step Explanation
Essential amino acids are those that cannot be synthesized by the human body and must be obtained through the diet.
There are 9 essential amino acids for humans:
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Threonine
Tryptophan
Valine
Looking at the options:
Option A: Histidine, isoleucine, leucine, and lysine are all essential amino acids.
Option B, C, D: Contain non-essential or conditionally essential amino acids like alanine, arginine, asparagine, aspartic acid, glycine, proline, serine, and tyrosine.
There are 9 essential amino acids for humans:
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Threonine
Tryptophan
Valine
Looking at the options:
Option A: Histidine, isoleucine, leucine, and lysine are all essential amino acids.
Option B, C, D: Contain non-essential or conditionally essential amino acids like alanine, arginine, asparagine, aspartic acid, glycine, proline, serine, and tyrosine.