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Respiration Questions

Practice 43 Respiration questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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43
Total Questions
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15
Easy
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25
Medium
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3
Hard
Practice by Exam:Biology(39)General Awareness(2)Science(1)Botany(1)

About Respiration ā€” practice questions, PYQs & concepts

Respiration is a frequently-tested topic on Biology, General Awareness, Science. ExamTest.live currently lists 43 Respiration questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year ā€” every answer key is free, no sign-up required.

Respiration weight in competitive exams

Across our Respiration question bank, the largest sources are Biology (39), General Awareness (2), Science (1) and Botany (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 15 easy Respiration questions are available ā€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right ā€” the explanation often surfaces a faster approach you can reuse.

All Respiration Questions(1ā€“43 of 43)

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Q1mediummcqScienceWest Bengal Civil Services2026
0% accuracy
Amount of normally carried by of pure human blood, is
Q2easymcqBiologyNEET 20192026
0% accuracy
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
Q3easymcqBiologyNEET 20192026
0% accuracy
Respiratory Quotient (RQ) value of tripalmitin is:
Q4mediummcqGeneral AwarenessSSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)2026
0% accuracy
During the process of respiration in plants, which of the following is NOT released as a product?
Q5mediummcqBiologyNEET 20172026
Which statement is wrong for Krebs' cycle?
Q6mediummcqBiologyNEET 20212026
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
Q7easymcqBiologyNEET 20222026
What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
Q8easymcqBiologyNEET 20222026
What amount of energy is released from glucose during lactic acid fermentation?
Q9easymcqBiologyNEET 20222026
Which of the following is not the function of the conducting part of the respiratory system?
Q10easymcqBiologyNEET 20222026
Under normal physiological conditions in human beings every oxygenated blood can deliver ____ of to the tissues.
Q11easymcqBiologyNEET 20232026
Vital capacity of lung is:
Q12easymcqBiologyNEET 20232026
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:
Q13mediummcqBiologyNEET 20232026
Match List I with List II:| List I | List II || :--- | :--- || A. Oxidative decarboxylation | I. Citrate synthase || B. Glycolysis | II. Pyruvate dehydrogenase || C. Oxidative phosphorylation | III. Electron transport system || D. Tricarboxylic acid cycle | IV. EMP pathway |
Q14hardmcqBotanyNEET 2024 R1@NUM: 1472026
Identify the step in the tricarboxylic acid cycle that does not involve oxidation of the substrate:
Q15mediummcqGeneral AwarenessSSC CGL2026
Respiratory failure is a condition in which your blood doesn't have enough _______ or has too much _______.
Q16mediummcqBiologyCompetitive Exam2026
The amount of normally carried by of pure oxygenated human blood is:
Q17mediummcqBiologyCompetitive Exam Prep2026
Which of the following physiological stages of cellular respiration makes direct metabolic use of molecular oxygen?
Q18mediummcqBiologyCompetitive Exam2026
Which can bind molecules?
Q19mediummcqBiologyBiology
0% accuracy
Which one of the following mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically?
Q20mediummcqBiologyBiology
0% accuracy
All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is:
Q21mediummcqBiologyBiology
0% accuracy
The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:
Q22mediummcqBiologyBiology
In mitochondria, protons accumulate in the:
Q23mediumassertion/reasoningBiologyBiology
The atmospheric concentration of at which photosynthesis just compensates for respiration is referred to as compensation point.
Q24mediummcqBiologyBiology
In germinating seeds, fatty acids are degraded exclusively in the:
Q25easymcqBiologyBiology
The chemiosmotic coupling hypothesis proposes that ATP is formed because:
Q26mediummcqBiologyBiology
Substrate oxidation without an external electron acceptor is called:
Q27mediummcqBiologyBiology
Aerobic respiratory pathway is appropriately termed:
Q28easymcqBiologyBiology
The energy releasing metabolic process in which substrate is oxidised without an external electron acceptor is called:
Q29easymcqBiologyBiology
Listed below are four respiratory capacities () and four jumbled respiratory volumes. Which one is correctly matched?Respiratory capacities: (a) Residual volume, (b) Vital capacity, (c) Inspiratory reserve volume, (d) Inspiratory capacity.Respiratory volumes: .
Q30easymcqBiologyBiology
What is true about in humans?
Q31mediummcqBiologyBiology
Bulk of carbon dioxide released from body tissues into the blood is present as:
Q32mediummcqBiologyBiology
In which one of the following processes is not released?
Q33hardmcqBiologyBiology
Read the following four statements (A ā€“ D):(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen-fixers occur in free-living state also in soil.How many of the above statements are right?
Q34mediummcqBiologyBiology
People who have migrated from the plains to an area adjoining Rohtang Pass about six months back:
Q35mediummcqBiologyBiology
Which one of the following is the correct statement for respiration in humans?
Q36mediummcqBiologyBiology
The three boxes in a diagram represent the major biosynthetic pathways in aerobic respiration. Pathway A is Glycolysis, B is Krebs cycle, and C is ETS. Arrows represent reactants/products. Arrows 4, 8, and 12, which exit from each pathway respectively, can all represent:
Q37mediummcqBiologyBiology
Which of the following metabolites is common to the respiration-mediated breakdown of fats, carbohydrates, and proteins?
Q38easymcqBiologyBiology
In the human respiratory system, the Bag-like structures where gas exchange occurs are:
Q39hardmcqBiologyBiology
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because:
Q40easymcqBiologyBiology
The partial pressure of oxygen in the alveoli of the lungs is:
Q41mediummcqBiologyBiology
Oxidative phosphorylation is:
Q42mediummcqBiologyBiology
Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
Q43easymcqBiologyBiology
Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs:

Frequently Asked Questions

How many Respiration questions are on ExamTest.live?ā–¼
We have 43 Respiration questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Respiration MCQs free?ā–¼
Yes. All Respiration questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Respiration questions?ā–¼
Respiration questions are commonly asked in Biology, General Awareness, Science, Botany. You can filter by exam using the links above.
How do I practice Respiration questions effectively?ā–¼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.