NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If dipeptides carboxyl group reacts with the amino group, what is formed?
A
The next peptide bond
B
The next protein
C
The next amino acid
D
The next ionic bond
Explanation: 

Detailed explanation-1: -The new compound formed in this way is called a peptide. Our example is a dipeptide, formed from two amino acids. If a third amino acid is connected to the dipeptide by forming a new peptide bond at either the ammonium group or the carboxylate group of the dipeptide, we obtain a tripeptide, and so on.

Detailed explanation-2: -Each amino acid is attached to another amino acid by a covalent bond, known as a peptide bond. When two amino acids are covalently attached by a peptide bond, the carboxyl group of one amino acid and the amino group of the incoming amino acid combine and release a molecule of water.

Detailed explanation-3: -Dipeptide contain one peptide bond and two amino acids. Tripeptides contain two peptide bonds and three amino acids.

Detailed explanation-4: -A dipeptide has two peptide bonds.

There is 1 question to complete.