NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 204 - 210 of 3511

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Question number: 204

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

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MCQ▾

Question

Which of the following pigments is presents in all algae?

Choices

Choice (4) Response

a.

Chlorophyll-b

b.

Chlorophyll-a

c.

Chlorophyll-d

d.

Chlorophyll-c

Question number: 205

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

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MCQ▾

Question

Which of the following is not naturally occurring plant hormone?

Choices

Choice (4) Response

a.

GA2

b.

IAA

c.

Gibberellin

d.

2,4-D

Question number: 206

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

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MCQ▾

Question

Guard cell movement furnishes an example of

Choices

Choice (4) Response

a.

Tactic movement

b.

Nastic movement

c.

Turgor movement

d.

Cyclosis movement

Question number: 207

» Cell Structure and Function » Cell Organelles - Structure and Function » Endomembrane System-ER

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MCQ▾

Question

Which of the following is responsible for mechanical support, enzyme transport and protein synthesis?

Choices

Choice (4) Response

a.

Dictyosomes

b.

Mitochondria

c.

Endoplasmic reticulum

d.

Cell membrane

Question number: 208

» Reproduction » Reproduction in Organisms » Characteristics of Reproduction

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MCQ▾

Question

A perennial plant differs from biennial in

Choices

Choice (4) Response

a.

Having asexual reproductive structures.

b.

Being tree species.

c.

Not dying after seasonal production of flowers.

d.

Having underground perennating structure.

Question number: 209

» Plant Physiology » Photosynthesis » Pigments Involved in Photosynthesis

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MCQ▾

Question

“The amount of CO2 absorbed and O2 released during photosynthesis are in equal volumes” was proved by

Choices

Choice (4) Response

a.

Engleman

b.

Robert Mayer

c.

Priestely

d.

Bousingault

Question number: 210

» Genetics and Evolution » Molecular Basis of Inheritance » Gene Expression and Regulation

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MCQ▾

Question

In operon concept, the regulator gene regulates chemical reactions in the cell by

Choices

Choice (4) Response

a.

Inhibiting migration of mRNA into cytoplasm.

b.

Inhibiting transcription of mRNA

c.

Inhibiting the substrate in the reaction.

d.

Inactivating enzymes in the reaction