A change in an amino acid located distantly from the active site of an enzyme can affect the specificity of the enzyme towards its substrate by:

1.	making the enzyme unstable
2.	cause a relocation of the enzyme within a cell
3.	changing the shape of the protein
4.	changing the optimum pH and temperature values for the enzyme

The property of water that enables it to
stabilize temperature in bodies of organisms
and thus makes it indispensible for life is:
1. High specific heat
2. High latent heat of fusion
3. High latent heat of vaporization
4. High cohesion and adhesion

The element that makes up the highest
percent weight of the human body is:
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen

The number of high energy bonds in a molecule of ATP is:

The molecule that is never branched and is
straight is:
1. Amylose
2. Amylopectin
3. Glycogen
4. Cellulose

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

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