Biochemistry

1. % of water in brain cells is

0.2

0.8

0.85

0.9

2. Which of the following statement is incorrect about RNA?

The pentose sugar in it is Ribose.

It contains Adenine Guanine Thymine and Cytosine

It is present in the nucleoli

It may be folded back on itself to give double helical characteristics.

3. The element in the basic structure of proteins which differentiate them from carbohydrates is

C

S

H

N

4. An insulin molecule consists of _____ polypeptide chains.

1

2

3

4

5. An Example of ____________ is Carnauba Wax

Soft Wax

Liquid Wax

Hard Wax

Archaebacterial Wax

6. The monosaccharide found in some bacteria and occurring rarely are

Trioses

Hexoses

Tetroses

Pentoses

7. 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

8. Carbon commonly combines with

H

N & O

P & S

All of these

9. Carbon atom is

Monovalent

Divalent

Trivalent

Tetravalent

10. The covalent bond between two monosaccharide subunits is called:

Phosphodiester bond

Peptide bond

Glycosidic Bond

Ionic bond

Question 1 of 10

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