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Respiration in Plants · Question 1

NEET (UG) 2026MCQMedium📈 Topic in 12% papers+4−1
1

2(C51H98O6) + 145O2 102CO2 + 98H2O + energy The Respiratory Quotient (RQ) of a biomolecule used for respiration, as per the above equation would be :

  1. Less than 0.5
  2. Between 1.25 and 2
  3. 1.0
  4. Between 0.5 and 0.95

Answer

(4) Between 0.5 and 0.95

Solution

RQ = Volume of CO2 evolvedVolume of O2 consumed

The given equation is the oxidation of tripalmitin (a fat).

⇒ RQ = 102 CO2145 O2

⇒ RQ 0.7

∵ As per NCERT, fats have RQ less than 1, and 0.7 lies between 0.5 and 0.95.

∴ RQ is between 0.5 and 0.95.

Answer: (4)

NEET (UG) 2026

Keep practising — Respiration in Plants

2

Match List I with List II :

  1. A-IV, B-II, C-I, D-III
  2. A-I, B-IV, C-III, D-II
  3. A-II, B-III, C-IV, D-I
  4. A-III, B-I, C-IV, D-II
NEET (UG) 2026
3

How many molecules of pyruvic acid are produced at the end of glycolysis from 206 molecules of glucose?

  1. 412
  2. 206
  3. 309
  4. 103
RE-NEET (UG) 2026
4

The complex II of mitochondrial electron transport chain is also known as

  1. Cytochrome c oxidase
  2. NADH dehydrogenase
  3. Cytochrome bc1
  4. Succinate dehydrogenase
NEET (UG) 2025
5

Match List I with List II Choose the correct answer from the options given below:

  1. A-I, B-II, C-III, D-IV
  2. A-II, B-I, C-IV, D-III
  3. A-III, B-IV, C-I, D-II
  4. A-IV, B-III, C-II, D-I
NEET (UG) 2024
6

Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate.

  1. Malic acid Oxaloacetic acid
  2. Succinic acid Malic acid
  3. Succinyl-CoA Succinic acid
  4. Isocitrate -ketoglutaric acid
NEET (UG) 2024
7

Match List-I with List-II:

  1. A-IV, B-I, C-III, D-II
  2. A-I, B-IV, C-II, D-III
  3. A-III, B-I, C-IV, D-II
  4. A-I, B-II, C-IV, D-III
RE-NEET (UG) 2024
8

Which of the following are correct about cellular respiration? Choose the correct answer from the options given below :

  1. A, C, D, E only
  2. A, B, E only
  3. A, B, C, E only
  4. B, C, D, E only
RE-NEET (UG) 2024
9

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R: 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.
NEET (UG) 2023
10

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
NEET (UG) 2023
11

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
NEET (UG) 2022

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