NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 754 - 759 of 3511

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Question number: 754

» Reproduction » Reproductive Health » Birth Control-Need and Methods

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MCQ▾

Question

Action of vaginal diaphragm is

Choices

Choice (4) Response

a.

Anti-implantational

b.

Spermicidal

c.

To prevent the sperm to come in contact with ova.

d.

To prevent the ova to come in the uterus.

Question number: 755

» Ecology and Environment » Environmental Issues » Greenhouse Effect and Global Warning

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MCQ▾

Question

Green house gases include

Choices

Choice (4) Response

a.

CO2, O2, N2, NO2 & NH3

b.

CH4, N2, CO2 & NH3

c.

CFC, CO2, NH3 & N2

d.

CO2, CFC, CH4 & NO2

Question number: 756

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

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MCQ▾

Question

Single membrane bound organelles are

Choices

Choice (4) Response

a.

centrioles

b.

nucleolus

c.

vacuole

d.

ribosomes

Question number: 757

» Plant Physiology » Transport in Plants » Movement of Water, Gases and Nutrients

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MCQ▾

Question

Conduction of inorganic materials in plants occur mainly through or Minerals absorbed by roots move at the leaf through

Choices

Choice (4) Response

a.

sieve tube

b.

phloem

c.

xylem

d.

Question does not provide sufficient data or is vague

Question number: 758

» Cell Structure and Function » B Cell Division » Cell Cycle

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MCQ▾

Question

As there occurs more and more condensation of chromatin during cell division, there occurs

Choices

Choice (4) Response

a.

differentiation of heterochromatin and euchromatin decreases

b.

differentiation of heterochromatin and euchromatin is clearly shown

c.

increase in heterochromatin

d.

increase in euchromatin

Question number: 759

» Plant Physiology » Transport in Plants » Transpiration-Opening and Closing of Stomata

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MCQ▾

Question

Under what conditions the rate of transpiration increases?

Choices

Choice (4) Response

a.

Increase of atmospheric pressure.

b.

Decrease of temperature.

c.

Increase of humidity.

d.

Decrease of humidity