Hydrolysis of proteins gives

Assertion : At isoelectric point,the amino acid does not migrate under the influence of an electric field.
Reason : At isoelectric point,amino acid exists as a zwitterion.

Denaturation of proteins leads to the loss of their biological activity due to:

Which one of the nitrogen atoms of histidine is protonated first?

When $HNO_3$ is dropped into the palm and washed with water,it turns yellow. The above yellow colour is due to:

When collagen is boiled with water,it forms