NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 638 - 643 of 3511

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Question number: 638

» Diversity in Living World » Five Kingdom Classification » Plant Group - Gymnosperms

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MCQ▾

Question

Which of the following is living fossil?

Choices

Choice (4) Response

a.

Thuja

b.

Deodar

c.

Ginkgo

d.

Pinus

Question number: 639

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo

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MCQ▾

Question

The outermost layer of endosperm of maize grain is called

Choices

Choice (4) Response

a.

Aleurone

b.

Epidermis

c.

Pericarp

d.

Tunica

Question number: 640

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Flower

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Question

Which statement is wrong for compositae?

Choices

Choice (4) Response

a.

5-lobed stamens

b.

Basal ovule

c.

Syngenesious stamens

d.

Ligulate ray florets

Question number: 641

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

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MCQ▾

Question

Self pollination means

Choices

Choice (4) Response

a.

Transference of pollens from one flower to another on the same plant.

b.

Germination of pollens within the anther.

c.

Transference of pollens from anther to be stigma within the same flower.

d.

Occurrence of male and female sex organs in the same flowers.

Question number: 642

» Human Physiology » Neural Control and Coordination » Generation and Conduction of Nerve Impulse

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MCQ▾

Question

Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that

Choices

Choice (4) Response

a.

Neurotransmitters are released by dendrites and not by axon endings.

b.

Nerve fibre is insulated by a medullary sheath.

c.

Sodium pump starts operating only at the cyton and then continues into the nerve fibre.

d.

Neurotransmitters are released by the axon ending and not by dendrites.

Question number: 643

» Plant Physiology » Transport in Plants » Guttation

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MCQ▾

Question

A specialized multicellular structure in leaves which excretes water droplets is called as

Choices

Choice (4) Response

a.

Lenticels

b.

Wounds

c.

Hydathodes

d.

Stomata