Proteins and Amino Acids

The functional group found in amino acids is called ________.

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?

Define $\mathrm{\beta }$-amino acids with example.

The spatial arrangement of subunits with respect to each other is known as _____ structure of proteins.

The above dipeptide is

^{Which of the following statements is incorrect about peptide bond}

The isoelectric point is a

Amino acids are classified as acidic, basic, or neutral depending upon the relative number of amino and carboxyl acid groups in their molecule. Which among the following are acidic?

(a) 

(b) 

(c) 

(d) 

Amino acids are classified as acidic, basic, or neutral depending upon the relative number of amino and carboxyl acid groups in their molecule. Which among the following are acidic?

(a) 

(b) 

(c) 

(d) 

Amino acids are classified as acidic, basic, or neutral depending upon the relative number of amino and carboxyl acid groups in their molecule. Which among the following are acidic?

(a) 

(b) 

(c) 

(d) 

Which of the list shown below have the correct pair of the structure of alanine in $\mathrm{pH}$ ranges $2-4$ and $9-11$ is

I. ${\mathrm{H}}_3\stackrel{+}{\mathrm{N}}-\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CO}}_2\mathrm{H}$

II. ${\mathrm{H}}_2\mathrm{N}-\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CO}}_2^{-}$

III. ${\mathrm{H}}_3\stackrel{+}{\mathrm{N}}-\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CO}}_2^{-}$

IV. ${\mathrm{H}}_2\mathrm{N}-\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CO}}_2\mathrm{H}$

Which of the following set consists only of essential amino acids?

The primary structure of protein is based upon the

A tetrapeptide is made of naturally occurring alanine, serine, glycine and valine. If the $\mathrm{C}$-terminal amino acid is alanine and the $\mathrm{N}$-terminal amino acid is chiral, the number of possible sequences of the tetrapeptide is

Identify basic amino acid from the following: