ICSE Class 10 Photosynthesis in Higher Plants — Mock Test (2027)
Free online mock test for Photosynthesis in Higher Plants (ICSE Class 10 Botany) — 78 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 Photosynthesis in Higher 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 carboxylation of RuBP in the Calvin cycle is catalysed by the enzyme:
- A.PEP carboxylase
- B.RuBisCO (RuBP carboxylase-oxygenase)
- C.ATP synthase
- D.NADP reductase
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2.Chemiosmosis for ATP synthesis requires which of the following components?
- A.A membrane, a proton pump, a proton gradient and ATP synthase
- B.Only chlorophyll and light
- C.Only RuBisCO and CO2
- D.Cristae, matrix and 70S ribosomes
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3.Why do C4 plants lack photorespiration?
- A.They lack RuBisCO entirely
- B.A mechanism increases CO2 concentration at the enzyme site, ensuring RuBisCO acts as a carboxylase
- C.Their stomata never close
- D.They have no bundle sheath cells
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4.Compared with leaves on the sunny side of a plant, the leaves on the shady side are usually darker green because
- A.they receive less light, so they make more chlorophyll to capture the limited light
- B.they store more starch
- C.their carotenoid content is much higher
- D.they carry out only cyclic photophosphorylation
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5.Which of the following is NOT a requirement of chemiosmosis as described in the chloroplast?
- A.A membrane
- B.A proton pump and a proton gradient
- C.ATP synthase
- D.RuBisCO enzyme
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