Subjects

Subjects

Biochemistry

1. Which of the following does not show quaternary structure?

Hemoglobin

Pepsin

Fibrin

Insulin

2. Carbon commonly combines with

N & O

P & S

All of these

3. In Cx(H2O)y x ranges from

1 to 3 thousand

3 to many thousand

3 to 5 thousand

5 to 9 thousand

4. Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA

i & ii

iii & iv

i ii iii & iv

iv only

5. Which of the following statement is incorrect5 for fats containing unsaturated fatty acid?

They contain double bond

They are usually solid at room temperature

They are lighter than water

Their specific gravity is less than 1

6. Which conjugated molecules play important role in gene expression?

Glycolipids

Glycoproteins

Nucleohistones

None of these

7. Which one is an organic compound?

CO2

Water

Lipids

HCI

8. De Novo Fatty Acid Synthesis indicates this

Occurs only with Prolonged Fasting

Excess intake of Fat

Excess Energy Yielding Substrates

Depletion of Energy Yielding Substrates

9. Which statement is true about an aqueous medium:

Ionic as well as non-ionic substance in aqueous media retains their identity.

Enzymes cannot perform catalysis reaction in this medium.

Ions and molecules move randomly thus are in a more favorable state to react with other molecules and ions.

It is less favorable media for chemical reactions.

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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