Which of the following amino acids is basic in nature?

The level of blood sugar in our body is maintained by which protein?

Assertion $(A)$: An optically active amino acid can exist in three forms depending on the $pH$ of the solution.
Reason $(R)$: Amino acids contain both acidic and basic groups; they exist as a zwitterion in aqueous medium,anionic form in basic medium,and cationic form in acidic medium.

Which of the following amino acids contains an alcohol functional group?

Amino acids usually exist in the form of Zwitter ions. This means that they consist of:

Which one of the following is an example of a globular protein?