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Botany MCQs for NEET — Practice Questions with Answers

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Respiratory Quotient is

A. Volume of Carbon-dioxide evolved B. Ratio of volume of oxygen consumed to volume of Carbon-dioxide evolved C. Ratio of volume of Carbon-dioxide evolved to the volume of oxygen consumed D. Ratio of volume of oxygen evolved to volume of Carbon-dioxide consumed

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Explanation

Page number-236

14.7 Respiratory Quotient

Respiration In Plants

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The value of respiratory Quotient actually depends upon

A. The type of respiratory substrate used B. The place in which respiration is occurring C. The amount of ventilation D. Breathing surface

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Explanation

Page number-236

14.7 Respiratory Quotient

Respiration In Plants

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For the substrate Glucose, how many Oxygen are used and how many Carbon-dioxide are evolved?

A. 3,3 B. 6,3 C. 3,6 D. 6,6

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Explanation

Page number-237

14.7 Respiratory Quotient

Respiration In Plants

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How many Carbon-dioxide are evolved in respiration of two molecules of Tripalmitin?

A. 102 B. 145 C. 98 D. 6

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Explanation

Page number-237

14.7 Respiratory Quotient

Respiration In Plants

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How many Oxygen are used in the respiration of two molecules of Tripalmitin?

A. 145 B. 102 C. 98 D. 6

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Explanation

Page number-237

14.7 Respiratory Quotient

Respiration In Plants

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RQ is 0.7; it can be

A. Carbohydrate B. Protein C. Fatty Acid D. Both A and C

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Explanation

Page number-237

14.7 Respiratory Quotient

Respiration In Plants

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The RQ of a substrate is found to be 0.9 what would be that substrate?

A. Carbohydrate B. Fatty Acid C. Lipid D. Protein

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Explanation

Page number-237

14.7 Respiratory Quotient

Respiration In Plants

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Which of the following is not correct?

A. In living organisms, respiratory substrates are often more than one B. Pure proteins and fats can also be used as respiratory substrate C. Fermentation takes place under anaerobic conditions in many prokaryotes, unicellular Eukaryotes and in germinating seeds D. Oxygen is the ultimate acceptor of electrones and it gets reduced to water

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Explanation

Page number-237-238

14.7 Respiratory Quotient

and summary

Respiration In Plants

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Parthenocarpy in grapes is induced by:-

cytokinins

gibberellins

topoisomerases

primase

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Explanation

(b) Parthenocarpy is the phenomenon of development of seedless fruits (without pollination and fertilization). Parthenocarpy can be induced by auxins as well as gibberellins but the latter are more potent parthenocarpic agents.

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Induction of flowering by low temperature in plants is

cryobiology

vernalization

phototropism

pruning.

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Explanation

(b) : Vernalization is a process of shortening of the juvenile or vegetative phase and hastening flowering by a previous cold treatment. The term vernalization was coined by Lysenko (1928).

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