BIOMOLECULES AND ENZYMES

BIOLOGY

AMINO ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A tripeptide has
A
3 amino acids and 1 peptide bond
B
3 amino acids and 2 peptide bonds
C
3 amino acids and 3 peptide bonds
D
3 amino acids and 4 peptide bonds
Explanation: 

Detailed explanation-1: -A tripeptide is a peptide derived from three amino acids joined by two or sometimes three peptide bonds. As for proteins, the function of peptides is determined by the constituent amino acids and their sequence. The simplest tripeptide is glycine.

Detailed explanation-2: -A peptide bond is a bond between two amino acids, the monomers of proteins, and in a tripeptide (three amino acids) you would have two peptide bonds.

Detailed explanation-3: -Let 3 amino acids be ABC. The acid and amine ends of each molecule can be used to produce a tripeptide. Hence a total of 9 tripeptides are possible.

Detailed explanation-4: -Tripeptides are essentially three amino acid molecules joined together with the elimination of water and the formation of two amide (H–N–CO) bonds.

Detailed explanation-5: -In the case of tripeptides, the number of possible products from these two amino acids rises to eight.

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