Plant Anatomy and Physiology MCQ question and answer with solution

81

The energy intensive process consisting of combustion in absence of oxygen is known as

A) Hydrolysis B) Pyrolysis C) Glycolysis D) None of the above

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Answer & Solution

Answer: Option B

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82

Isopentenyl adenine, a species of cytokinin, differs from zeatin in that

A) A methyl greup is present at the third carbon position in place of the hydroxyl group B) An ethyl group is present at the third carbon position in place of the hydroxyl group C) A hydroxyl group is present at the third carbon position in place of the methyl group D) A methyl group is present at the third carbon position in place of the aldehyde group

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Answer & Solution

Answer: Option A

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83

The differences between the absolute humidity and relative humidity expresses the

A) Biological oxygen demand B) Absolute deficit of the temperature C) Saturation deficit of the air D) All of the above

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Answer & Solution

Answer: Option C

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84

The gibberellin compounds that have been isolated from Pisum sativum include

A) GA₁₇, GA₃₈, GA₃₉, GA₄₀ B) GA₁₇, GA₃₈, GA₉, GA₂₀ C) GA₉, GA₃₈, GA₂₀, GA₄₀ D) GA₁₇, GA₃₈, GA₉, GA₄₀

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Answer & Solution

Answer: Option B

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85

The measure of the efficiency of a process induced by light of different wavelengths but of the same intensity is known as

A) Absorption spectrum B) Action spectrum C) Wave spectrum D) None of the above

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Answer & Solution

Answer: Option B

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86

Which of the following antibiotics is used to control blast of rice?

A) Agricimicin B) Blasticidin C) Streptomycin D) Penicillin

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Answer: Option B

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87

The Embden-Myerhof-Pamas (EMP) pathway is also referred to as

A) Hexose monophosphate shunt B) Non-cyclic photophosphorylation C) Glycolate pathway D) Hexose diphosphate pathway

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Answer: Option D

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88

The effect of the two superimposed beams of light on the rate of photosynthesis exceeds the sum effect of both beams of light used separately. This photosynthetic enhancement is referred to as

A) Hill's reaction B) Emerson effect C) Photosystem effect D) Spectrum effect

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Answer & Solution

Answer: Option B

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89

Which of the following free-floating hydrophytes possesses only one root?

A) Nymphaea B) Spirodela C) Lemna D) Wolffia

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Answer: Option C

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90

Which of the following plants is a common insectivorous plant found in India?

A) Rafflesia B) Morinda C) Eucalyptus D) Nepenthes

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Answer: Option D

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Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs