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NEET • BIOLOGY • RESPIRATION IN PLANTS
Respiration in plants practice · Hard
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31
Hard
31 of 40
Understanding
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RQ in anaerobic respiration is?
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Correct option: D
Infinity
Option D is correct because in anaerobic respiration, there is no oxygen consumption, but carbon dioxide may still be produced, making the RQ value infinite.
32
Hard
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Analyzing
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Assertion (A): Glycolysis is the oxidative process, while there is not utilization of
Reason (R): In glycolysis two redox equivalents are removed in form of two hydrogen atoms.
Reason (R): In glycolysis two redox equivalents are removed in form of two hydrogen atoms.
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Correct option: A
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Option A (Both (A) & (R) are true and the (R) is the correct explanation of the (A)) is correct because glycolysis is oxidative despite not using O2, and this oxidation involves removing redox equivalents.
33
Hard
33 of 40
Understanding
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In Krebs cycle
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Correct option: A
Acetyl Co-enzyme A undergoes 4 oxidations and 2 decarboxylations
Option A (Acetyl Co-enzyme A undergoes 4 oxidations and 2 decarboxylations) is correct because during the Krebs cycle, Acetyl Co-A is oxidized four times and decarboxylated twice.
34
Hard
34 of 40
Understanding
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For every molecule entering the Calvin cycle. How many ATP and NADPH are required?
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Correct option: A
3 and 2
Option A (3 and 2) is correct because the fixation of one molecule in the Calvin cycle requires 3 ATP and 2 NADPH.
35
Hard
35 of 40
Remembering
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RQ is always less than one in
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Correct option: D
Castor
Option D (Castor) is correct because castor seeds are rich in fats, and fats have an RQ less than one.
36
Hard
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Understanding
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When is oxidized through ETS
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Correct option: C
Both 1 and 2
Option C is correct because when FADH2 is oxidized through the electron transport system (ETS), it produces 2 ATP molecules and consumes 1/2 O2.
37
Hard
37 of 40
Understanding
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In ETS electrons move from
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Correct option: D
1 and 2
Option D is correct because in the electron transport system (ETS), electrons move from NADH and FADH2 to oxygen, which acts as the final electron acceptor.
38
Hard
38 of 40
Analyzing
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During the early stages of alcoholic fermentation there is a high rate of growth of yeast. After some time the rate decreases. Which of the following conditions in the culture medium is least likely to have caused this?
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Correct option: B
Depletion of oxygen
Option B (Depletion of oxygen) is correct because alcoholic fermentation is an anaerobic process and does not require oxygen. The depletion of oxygen would not decrease the growth rate.
39
Hard
39 of 40
Understanding
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In which one of the following processes is not released?
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Correct option: D
Lactate fermentation
Option D (Lactate fermentation) is correct because it does not release as a byproduct, unlike the other processes.
40
Hard
40 of 40
Remembering
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Aerobic fate of pyruvate is occurred in;
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Correct option: B
mitochondria.
Option B (mitochondria) is correct because the aerobic fate of pyruvate, including the citric acid cycle and electron transport chain, occurs within the mitochondria.
Revision notes and key takeaways
Review RESPIRATION IN PLANTS in your textbook or class notes, then use this set to check your understanding.
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