Biochemistry

1. The Enzyme COX-1 is Vital for Human Health in this Way:

It is a Chemical Derivative of aspirin

Catalyzes the Hormone-Production which Maintains the Stomach Lining

Critical for the Biosynthesis of DNA

Helps in the Transportation of Carbon Dioxide in the Blood

2. The branch of biology which deals with the study of chemical compounds and the chemical processes in the living organisms is called:

Chemistry

Biochemistry

Molecular biology

Both a and b

3. Glycolipids and glycoproteins have structural role in the _____ matrix of animal and bacterial cell

Extracellular

Intracellular

Both of these

Glucose

4. This Statement About Enzymes is True

Enzymes Accelerate Reactions by Lowering the Activation Energy

Enzymes are Proteins Whose Three-Dimensional form is Key to their Function

Enzymes do Not Alter the Overall Change in Free Energy for a Reaction

All of these

5. Hydrogenation is the Process of Conversion of Unsaturated Acid Groups into Saturated ones by a Catalyst ___________

6. Which of the following carbohydrate is tasteless?

Monosaccharide

Oligosaccharide

Polysaccharide

None of these

7. An amino acid yielding acetyl CoA during catabolism is

ketogenic

glucogenic

essential

both glucogenic and ketogenic

8. Tryptophan Synthetase of E.Coli, a Typical Bifunctional Oligomeric Enzyme Consists of

A Protein a and one Subunit A

A Protein Designated A

Two Proteins Designated a and B

A Protein Designated B

9. In Glycin an amino acid R group is replaced by

CH3

COOH

C = O

10. With Regards to Enzyme Action, this Statement is incorrect

Malonate is a Competitive inhibitor of Succinic Dehydrogenase

The Substrate Binds with the Enzyme at Its Active Site

The Non-Competitve inhibitor Binds the Enzyme at a Site Distinct from that Binding the Substrate

Addition of a Lot of Succinates does Not Reverse the inhibition of Succinic Dehydrogenase by Malonate

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