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Questions Available: 14
Year: 2025
Topic: Respiration in Plants
1.
The complex II of mitochondrial electron transport chain is also known as
(1).
NADH dehydrogenase
(2).
Cytochrome bc1
(3).
Succinate dehydrogenase
(4).
Cytochrome c oxidase

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Year: 2024
Topic: Respiration in Plants
2.
Match List I with List II:

Choose the correct answer from the options given below:
(1).
A-III, B-IV, C-I, D-II
(2).
A-IV, B-III, C-II, D-I
(3).
A-I, B-II, C-III, D-IV
(4).
A-II, B-I, C-IV, D-III

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Year: 2024
Topic: Respiration in Plants
3.
Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate.
(1).
Succinyl-CoA \(\rightarrow\) Succinic acid
(2).
Isocitrate \(\rightarrow\) α-ketoglutaric acid
(3).
Malic acid \(\rightarrow\) Oxaloacetic acid
(4).
Succinic acid \(\rightarrow\) Malic acid

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Year: 2023
Topic: Respiration in Plants
4.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A : ATP is used at two steps in glycolysis.
Reason R : First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6-phosphate into fructose-1-6-diphosphate.
In the light of the above statements, choose the correct answer from the options given below :
(1).
Both A and R are true but R is NOT the correct explanation of A.
(2).
A is true but R is false.
(3).
A is false but R is true.
(4).
Both A and R are true and R is the correct explanation of A.

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Year: 2023
Topic: Respiration in Plants
5.
Which of the following combinations is required for chemiosmosis?
(1).
membrane, proton pump, proton gradient, NADP synthase.
(2).
proton pump, electron gradient, ATP synthase.
(3).
proton pump, electron gradient, NADP synthase.
(4).
membrane, proton pump, proton gradient, ATP synthase.

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Year: 2023
Topic: Respiration in Plants
6.
Match List I with List II:

Choose the correct answer from the options given below :
(1).
A-II, B-IV, C-I, D-III
(2).
A-III, B-I, C-II, D-IV
(3).
A-II, B-IV, C-III, D-I
(4).
A-III, B-IV, C-II, D-I

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Year: 2022
Topic: Respiration in Plants
7.
What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
(1).
Four
(2).
Six
(3).
Two
(4).
Eight

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Year: 2022
Topic: Respiration in Plants
8.
What amount of energy is released from glucose during lactic acid fermentation?
(1).
Approximately 15%
(2).
More than 18%
(3).
About 10%
(4).
Less than 7%

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Year: 2020
Topic: Respiration in Plants
9.
The number of substrate level phosphorylations in one turn of citric acid cycle is:
(1).
One
(2).
Two
(3).
Three
(4).
Zero

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Year: 2019
Topic: Respiration in Plants
10.
Respiratory Quotient (RQ) value of tripalmitin is
(1).
0.7
(2).
0.07
(3).
0.09
(4).
0.9

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Year: 2019
Topic: Respiration in Plants
11.
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalysed by
(1).
hexokinase.
(2).
enolase.
(3).
phosphofructokinase.
(4).
aldolase.

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Year: 2018
Topic: Respiration in Plants
12.
What is the role of NAD+ in cellular respiration?
(1).
It is the final electron acceptor for anaerobic respiration.
(2).
It is a nucleotide source for ATP synthesis.
(3).
It functions as an electron carrier.
(4).
It functions as an enzyme.

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Year: 2018
Topic: Respiration in Plants
13.
Which of these statements is incorrect?
(1).
Oxidative phosphorylation takes place in outer mitochondrial membrane.
(2).
Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
(3).
Glycolysis occurs in cytosol.
(4).
Enzymes of TCA cycle are present in mitochondrial matrix.

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Year: 2017
Topic: Respiration in Plants
14.
Which statement is wrong for Kreb's cycle ?
(1).
The cycle starts with the condensation of acetyl group ( acetyl CoA ) with pyruvic acid to yield citric acid .
(2).
There are three points in the cycle where NAD+ is reduced to NADH + H+ .
(3).
There is one point in the cycle where FAD+ is reduced to FADH2 .
(4).
During conversion of succinyl CoA to succinic acid , a molecule of GTP is synthesized .

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