Biology MCQ – Set 2

Biology MCQ – Set 2

Serial : 11, Question ID : 1206

Prokaryotic cells lack

(A) nucleolus
(B) nuclear membrane
(C) membrane bound by organelles
(D) All of these

(D) All of these [/spoiler]

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Serial : 12, Question ID : 1207

Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by

(A) Robert Hooke
(B) Robert Brown
(C) Rudolf Virchow
(D) Theodore Schwann

(B) Robert Brown [/spoiler]

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Serial : 13, Question ID : 1208

Other than spreading malaria, anopheles mosquitoes are also vectors of

(A) dengue fever
(B) filariasis
(C) encephalitis
(D) yellow fever

(B) filariasis [/spoiler]

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Serial : 14, Question ID : 1209

Plants that grow in saline water are called

(A) halophytes
(B) hydrophytes
(C) mesophytes
(D) thallophytes

(A) halophytes [/spoiler]

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Serial : 15, Question ID : 1210

Pyorrhoea is a disease of the

(A) nose
(B) gums
(C) heart
(D) lungs

(B) gums [/spoiler]

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Serial : 16, Question ID : 1211

O2 released in the process of photosynthesis comes from

(A) CO₂
(B) water
(C) sugar
(D) pyruvic acid

(B) water [/spoiler]

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Serial : 17, Question ID : 1212

Plants hormone that induces cell division is

(A) auxins
(B) gibberellins
(C) Cytokinins
(D) domins

(C) Cytokinins [/spoiler]

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Serial : 18, Question ID : 1213

Plants hormone that is mainly responsible for Cell enlargement

(A) auxins
(B) gibberellins
(C) Cytokinins
(D) domins

(A) auxins [/spoiler]

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Serial : 19, Question ID : 1214

Phloem is a tissue found in

(A) reproductive organs of animals
(B) plants
(C) insects
(D) mammals

(B) plants [/spoiler]

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Serial : 20, Question ID : 1215

N2 content is kept constant in the biosphere due to

(A) N2 fixation
(B) industrial pollution
(C) nitrogen cycle
(D) absorption of N2

(C) nitrogen cycle [/spoiler]

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