Proteins and Amino Acids

The naturally occurring amino acid that contains only one basic functional group in its chemical structure is

In an oligopeptide named Alanylglycylphenyl alanyl isoleucine, the number of ${\mathrm{sp}}^2$ hybridised carbons is _____.

Which is not true for arginine?

The one that does not stabilize $2^{\circ }$ and $3^{\circ }$ structures of proteins is

Match List-I with List-II.

Choose the correct answer from the options given below:

Sulphur (S) containing amino acids from the following are:

(a) isoleucine

(b) cysteine

(c) lysine

(d) methionine

(e) glutamic acid

Match List I with List II :

Choose the correct answer from the options given below :

Match List I with List II

A naturally occurring amino acid that contains only one basic functional group.

The number of ${\mathrm{sp}}^2$ hybridised carbon atoms in the following peptide is :

Ala-Phe-Gly-Ala-Phe-Leu

One which does not stabilise secondary and tertiary protein.

How many of the following $\mathrm{\alpha }-$ amino acids contain sulphur?

Lysine, Methionine, Glutamic acid, Threonine, Arginine, Cysteine, Tyrosine, Isoleucine.

Which structure of polypeptide contains both intermolecular as well as intramolecular hydrogen bonds?

Which of the following are the incorrect structure of glycine at given $\mathrm{pH}$?

The compounds that cannot form Zwitter ion is:

Describe beta-amino acid.

At a certain value of $\mathrm{pH}$, amino acid does not migrate towards any of the electrode under the influence of electric field. This $\mathrm{pH}$ is called

What are the properties of $\mathrm{\beta }$-amino acids?