Question

What form exists at the isoelectric point of each of the following amino acids: (a) valine; (b)leucine; (c)proline; (d) glutamic acid

Short answer

Answer

a.

b.

c.

d.

Step-by-step solution

Isoelectric point

The isoelectric point denoted as pI constitutes the pH at which a specific molecule comprises a total electrical charge of zero. The pI of the molecule comprising one amine and a carboxyl group can be evaluated according to the formula:

Amino acid

Organic compounds possessing a carboxylic group and an amino group together with an alkyl group are amino acids. The different categories of amino acids comprise essential and non-essential amino acids.

Step 3:Identification of the form that exists at the isoelectric point of each amino acid

(a)The form existing at the isoelectric point for the amino acid, valine is given as:

(b)The form existing at the isoelectric point for the amino acid, leucine is given as:

(c)The form existing at the isoelectric point for the amino acid, proline is given as:

(d)The form existing at the isoelectric point for the amino acid of glutamic acid is given as: