Cell Structure and Function-Chemical Constituents of Living Cells (NEET Biology): Questions 1 - 5 of 120

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Question number: 1

» Cell Structure and Function » Chemical Constituents of Living Cells » Enzymes - Types, Properties, Enzyme Action

MCQ▾

Question

Basically how many types of enzymes have been recognized by International Union of Biochemistry?

Choices

Choice (4) Response

a.

8

b.

6

c.

5

d.

4

Question number: 2

» Cell Structure and Function » Chemical Constituents of Living Cells » Biomolecules-Structure and Function

MCQ▾

Question

The bright colours of ripe fruits are due to

Choices

Choice (4) Response

a.

chloroplast

b.

leucoplast

c.

chromoplast

d.

amyloplast

Question number: 3

» Cell Structure and Function » Chemical Constituents of Living Cells » Biomolecules-Structure and Function

MCQ▾

Question

Nucleoside is made up of

Choices

Choice (4) Response

a.

Sugar and phosphate

b.

Phosphate only

c.

Sugar and base

d.

Sugar only

Question number: 4

» Cell Structure and Function » Chemical Constituents of Living Cells » Enzymes - Types, Properties, Enzyme Action

MCQ▾

Question

The given graph shows the effect of substrate concentration on the rate of reaction of the enzyme green gram phosphatase.

Image showing substrate concentration v/s Rate of reaction

Image Showing Substrate Concentration v/s Rate of Reaction

Substrate concentration and rate of reaction high when enzymes involve, but when normal inhibitor involve in the reaction the graph shows normal effect.

What does the graph indicate?

Choices

Choice (4) Response

a.

Presence of an enzyme inhibitor in the reaction mixture.

b.

Formation of an enzyme-substrate complex.

c.

The rate of enzyme reaction is directly proportional to the substrate concentration.

d.

At higher substrate concentration the pH increases.

Question number: 5

» Cell Structure and Function » Chemical Constituents of Living Cells » Enzymes - Types, Properties, Enzyme Action

MCQ▾

Question

Coenzyme can function

Choices

Choice (4) Response

a.

In association with an apoenzyme.

b.

Independently of the apoezyme.

c.

In association with a vitamin.

d.

In association with a protein.

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