Cell Structure and Function (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 65 - 71 of 413

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Question number: 65

» Cell Structure and Function » Cell Organelles - Structure and Function » Cell Membrane

MCQ▾

Question

Which of the following layer is present nearest at plasma membrane in plant cell?

Choices

Choice (4) Response

a.

Primary wall

b.

Tonoplast

c.

Middle lamella

d.

Secondary wall

Question number: 66

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

MCQ▾

Question

Enzymes are different from inorganic catalysts by

Choices

Choice (4) Response

a.

Having high diffusion rate.

b.

Working at high temperature.

c.

Being proteinnaceous in nature.

d.

Not being used up in reactions.

Question number: 67

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

MCQ▾

Question

Which one of the following statements is true for the enzymes?

Choices

Choice (4) Response

a.

All enzymes are not proteins.

b.

All enzymes are proteins.

c.

All proteins are enzymes.

d.

All enzymes are vitamins.

Question number: 68

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

MCQ▾

Question

To explain the mechanism of enzymatic action, who proposed “Lock and key hypothesis”?

Choices

Choice (4) Response

a.

Koshland

b.

Sumner

c.

Fischer

d.

Jacob

Question number: 69

» Cell Structure and Function » Structure of Prokaryotic and Eukaryotic Cell

MCQ▾

Question

Which one of the following is prokaryote?

Choices

Choice (4) Response

a.

Green algae

b.

Bacteriophage

c.

Salmonella

d.

Agaricus

Question number: 70

» Cell Structure and Function » Cell Organelles - Structure and Function » Ribosomes

MCQ▾

Question

Eukaryotic 80 S ribosome breaks into

Choices

Choice (4) Response

a.

60 S and 40 S

b.

50 S and 30 S

c.

60 S and 50 S

d.

40 S and 40 S

Question number: 71

» Cell Structure and Function » B Cell Division » Meiosis

MCQ▾

Question

A tetrad consists of

Choices

Choice (4) Response

a.

Four homologous pairs of chromosomes.

b.

Four non-homologous chromatids.

c.

Two sets of homologous chromosomes, each with two chromatids.

d.

Four non-homologous chromosomes.

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