ICSE Class 10 Respiration in Plants — Mock Test (2027)
Free online mock test for Respiration in Plants (ICSE Class 10 Botany) — 75 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Respiration in Plants chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.The enzyme that phosphorylates glucose to glucose-6-phosphate in glycolysis is:
- A.Invertase
- B.Hexokinase
- C.Citrate synthase
- D.Lactate dehydrogenase
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2.What is the significance of the step-wise release of energy in respiration?
- A.It allows the energy to be released in small amounts that can be coupled to ATP synthesis instead of being lost as heat
- B.It releases all the energy of glucose at once as heat
- C.It prevents the cell from making any ATP
- D.It converts glucose directly into oxygen
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3.In muscle cells during exercise, when oxygen is inadequate, pyruvic acid is reduced to lactic acid by the enzyme:
- A.Alcohol dehydrogenase
- B.Lactate dehydrogenase
- C.Pyruvate decarboxylase
- D.Hexokinase
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4.Match the respiratory substrate with its respiratory quotient (RQ): (1) Carbohydrate (2) Fat (tripalmitin) (3) Protein. Choose the correct set.
- A.1 = 1.0; 2 = 0.7; 3 = 0.9
- B.1 = 0.7; 2 = 1.0; 3 = 0.9
- C.1 = 0.9; 2 = 0.7; 3 = 1.0
- D.1 = 1.0; 2 = 0.9; 3 = 0.7
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5.The metabolic pathway through which electrons pass from one carrier to another is called the:
- A.Calvin cycle
- B.Electron transport system
- C.Glycolytic pathway
- D.Krebs cycle
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