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.The optimum temperature for photosynthesis is:
- a.$10 - 15^{\circ} \mathrm{C}$
- b.$60 - 65^{\circ} \mathrm{C}$
- c.$40 - 45^{\circ} \mathrm{C}$
- d.$25 - 35^{\circ} \mathrm{C}$
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2.164. The specific function of light energy in the process of photosynthesis is to
- A.reduce carbon dioxide
- B.synthesise glucose
- C.activate chlorophyll
- D.split water
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3.Why is it not possible to demonstrate respiration in a green plant kept in sunlight?
- A.Photosynthesis produces oxygen, masking the oxygen consumed during respiration, making respiration unmeasurable.
- B.Sunlight inhibits respiration, so the plant stops respiring entirely during the day.
- C.Respiration occurs only in darkness, so it cannot be observed in sunlight.
- D.The plant uses all available oxygen for photosynthesis, leaving none for respiration.
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4.During photosynthesis, the oxygen in glucose comes from (a) CO₂
- A.CO₂
- B.water
- C.both CO₂ and water
- D.oxygen via air
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5.Which plant tissue is responsible for transporting starch from the leaves to all parts of the plant body?
- A.Xylem.
- B.Phloem.
- C.Cortex.
- D.Epidermis.
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