Biomolecules

Question 1

What is Zwitter ion?

Answer 1

It is a dipolar neutral ion which contains negative and positive charges.

Eg. Free amino acids in cells

Question 2

What are amino acids?

Answer 2

These are the biomolecules which contain amino and carboxylic group at alpha carbon.
Eg. Glycine, Alanine

Question 3

What are essential amino acids?

Answer 3

Essential: These cannot be synthesized in the body and are to be taken from diet.

Eg. Valine, Leucine

Question 4

Non Essential Amino acids?

Answer 4

These can be synthesized in the body.

Eg.Glycine,Alanine

Question 5

What are proteins?

Answer 5

These are the biopolymers of high molecular weight(10000u) composed of amino acids linked by peptide bonds. They are made of alpha amino acids

Eg. Keratin

Question 6

What are globular proteins?

Answer 6

They are polypeptide chains which are arranged in coils.
Spherical shape
Soluble in water
Eg. Insulin, albumin….

Question 7

What are fibrous proteins?

Answer 7

These polypeptide chains arranged in parallel with each other
They are thread like
Insoluble in water
Eg Keratin…