An amino acid that is negative charged amongst the following will be:

1. Glutamic acid	2. Lysine
3. Arginine	4. Histidine

The correct ascending order of percent composition of various components of a typical cell would be:
1. Protein – Carbohydrate – Lipids – Nucleic acids
2. Protein – Nucleic acids – Carbohydrate – Lipids
3. Carbohydrates – Protein – Nucleic acids– Lipids
4. Carbohydrates – Protein – Lipids – Nucleic acids

Type of bonds that stabilize a tertiary structure
of a protein include all the following except:
1. van der Waal’s interactions
2. Hydrophobic interactions
3. Disulfide linkage
4. Covalent bonds

Protein molecules that assist in the proper
folding of other proteins are known as:
1. Ubiquitins
2. Chaperonins
3. Prions
4. Calmodulins

A ribosome inhibiting secondary metabolite
protein found in the castor plant is:
1. Ricin

2. Abrin

3. Concanvalin A

4. Vinblastin

When an enzyme-substrate reaction tends
toward zero order, the only way to make a
reaction speed up is to:
1. Add more substrate
2. Add more enzyme
3. Increase the temperature
4. Increase the pressure in the medium

The Glucose transpoter protein present in the
baso-lateral surface of the intestinal epithelial
cells is:
1. GLUT 1

2. GLUT 2

3. GLUT 3

4. GLUT 4

The plot represents the relationship between
substrate concentration and velocity for a
single enzyme in the absence (curve x) and
presence (curve y) of a compound that binds
allosterically to the enzyme. The allosteric
compound is:

1. a competitive inhibitor.
2. a noncompetitive inhibitor.
3. an irreversible inhibitor.
4. an activator.

The metal ion that acts as a co-factor for both alcohol dehydrogenase and carbonic anhydrase is:

The living state can be best described as a:
1. non equilibrium steady state
2. non equilibrium non steady state
3. equilibrium non steady state
4. equilibrium steady state