ICSE Class 10 Photosynthesis — Mock Test (2027)
Free online mock test for Photosynthesis (ICSE Class 10 Biology) — 20 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 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.What are the alternative names for the light and dark reactions in photosynthesis?
- A.Krebs cycle (light), Glycolysis (dark)
- B.Hill reaction (light), Calvin cycle (dark)
- C.Photolysis (light), Citric acid cycle (dark)
- D.Electron transport (light), Fermentation (dark)
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2.Why is it necessary to destarch a plant before performing an experiment on photosynthesis?
- A.To ensure any starch detected is newly produced during the experiment, not pre-existing.
- B.To increase the plant's chlorophyll content for better photosynthesis.
- C.To remove excess water from the plant leaves before testing.
- D.To prevent the plant from absorbing carbon dioxide during the experiment.
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3.161. A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to
- A.remove chlorophyll from leaves
- B.remove starch from the plant
- C.ensure that no photosynthesis occurs
- D.ensure that leaves are free from starch
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4.What are the disc-like structures of chloroplast in which chlorophyll is present called?
- A.Stroma
- B.Granum
- C.Thylakoid
- D.Lamella
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5.Which one chemical reaction occurs during photosynthesis?
- A.Carbon dioxide is reduced and water is oxidised.
- B.Water is reduced and carbon dioxide is oxidised.
- C.Both carbon dioxide and water are oxidised.
- D.Both carbon dioxide and water are reduced.
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