Final answer:
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Step-by-step explanation:
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids. Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.
Proteins are composed of 20 amino acids, of which 9 are essential amino acids and 11 are nonessential amino acids.