ICSE Class 10

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

  1. 1.(iii) An alternative chemical that can be used instead of KOH is :
    • A.Sodium hydroxide.
    • B.Sodium chloride.
    • C.Potassium chloride.
    • D.Potassium permanganate.
  2. 2.What is the main function of photosynthesis?
    • A.To produce oxygen
    • B.To transduce light energy into chemical energy
    • C.To consume water and release carbon dioxide
    • D.To break down chlorophyll
  3. 3.Match the following:
    Light reactionDark reaction
    Light reaction occurs in the thylakoids/grana of the chloroplast.Dark reaction occurs in the stroma of the chloroplast.
  4. 4.Which of the following best describes NADP in the context of photosynthesis?
    • A.A carbohydrate that stores energy during the Calvin cycle.
    • B.An enzyme whose full form is Nicotinamide Adenine Dinucleotide Phosphate, reduced to NADPH₂ during electron transfer.
    • C.A pigment that absorbs sunlight in the light reaction.
    • D.A lipid that forms the membrane of chloroplasts.
  5. 5.What are the end products of the light reaction in photosynthesis?
    • a.Oxygen and ATP
    • b.Oxygen, ATP, and NADPH
    • c.Carbon dioxide and water
    • d.Glucose and ATP

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