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.Where does the light reaction of photosynthesis take place?
- a.Stroma
- b.Cytoplasm
- c.Thylakoids
- d.Nucleus
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2.A biologist studies how ADP is converted to ATP during photosynthesis under different light conditions. The process of conversion of ADP to ATP during Photosynthesis:
- a.Polymerisation.
- b.Photophosphorylation.
- c.Photorespiration.
- d.Photolysis.
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3.Which of the following correctly differentiates respiration and photosynthesis based on their reactants?
- A.Respiration uses glucose and oxygen; photosynthesis uses carbon dioxide and water
- B.Respiration uses carbon dioxide and water; photosynthesis uses glucose and oxygen
- C.Respiration uses only oxygen; photosynthesis uses only carbon dioxide
- D.Respiration uses water and glucose; photosynthesis uses oxygen and water
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4.In the experimental setup shown (img-6.jpeg) to demonstrate oxygen evolution during photosynthesis, what is the role of the inverted test tube?
- A.To supply carbon dioxide to the plant.
- B.To collect and trap oxygen bubbles released by the plant.
- C.To provide water to the plant for photosynthesis.
- D.To prevent the escape of chlorophyll from the leaves.
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5.Why is the iodine-test performed?
- A.To detect the presence of starch in leaves, indicating photosynthesis has occurred.
- B.To measure the amount of chlorophyll in leaves for photosynthesis.
- C.To check the oxygen production rate during photosynthesis.
- D.To determine the water absorption efficiency of plant roots.
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