Cell Structure and Function-Chemical Constituents of Living Cells (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology): Questions 1 - 5 of 124

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Question number: 1

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

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

8

b.

5

c.

4

d.

6

Question number: 2

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

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Question

The bright colours of ripe fruits are due to

Choices

Choice (4) Response

a.

leucoplast

b.

amyloplast

c.

chromoplast

d.

chloroplast

Question number: 3

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

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Question

Nucleoside is made up of

Choices

Choice (4) Response

a.

Sugar and phosphate

b.

Sugar and base

c.

Sugar only

d.

Phosphate only

Question number: 4

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

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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.

Formation of an enzyme-substrate complex.

b.

Presence of an enzyme inhibitor in the reaction mixture.

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

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MCQ▾

Question

Coenzyme can function

Choices

Choice (4) Response

a.

In association with a protein.

b.

In association with an apoenzyme.

c.

Independently of the apoezyme.

d.

In association with a vitamin.

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