HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIO CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Peptide bond is a ____
A
Covalent bond
B
Ionic bond
C
Metallic bond
D
Starch
E
Hydrogen bond
Explanation: 

Detailed explanation-1: -A peptide bond is basically an amide-type of the covalent chemical bond. This bond links two consecutive alpha-amino acids from C1 (carbon number one) of one alpha-amino acid and N2 (nitrogen number two) of another. This linkage is found along a peptide or protein chain.

Detailed explanation-2: -It is a covalent bond because there is an equal sharing of electrons that occurs in order to form the bond. This type of bond occurs between amino acids, and connects them together. Specifically, the bond occurs between the amino group of one amino acid, and the carboxylic acid group of another.

Detailed explanation-3: -A peptide bond is a type of covalent bond between the carboxyl group of one amino acid and the amino group of another amino acid. Amino acids themselves are made of atoms joined together by covalent bonds.

Detailed explanation-4: -Hence the peptide bond is a nonpolar covalent bond because it holds together two amino acids. Hence the peptide bond is nonpolar. A polypeptide chain contains a sequence of amino acids joined by peptide bonds, and each amino acid unit in a polypeptide is called a residue.

Detailed explanation-5: -A peptide bond. This covalent bond forms when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom (blue) from the amino group of a second amino acid.

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