ICSE Class 10 Absorption by Roots — Mock Test (2027)
Free online mock test for Absorption by Roots (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 Absorption by Roots 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 is active transport in plants, and which of the following pairs correctly represents two substances transported actively?
- A.The movement of substances from lower to higher concentration using cellular energy; nitrates and potassium ions.
- B.The diffusion of substances from higher to lower concentration without energy; glucose and oxygen.
- C.The passive movement of water through a semi-permeable membrane; sodium and chloride ions.
- D.The transport of substances via bulk flow in xylem; carbon dioxide and water.
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2.How do turgor changes in guard cells control the opening and closing of stomata?
- A.Guard cells open stomata when flaccid due to low osmotic pressure and close when turgid.
- B.Guard cells become turgid due to glucose synthesis during photosynthesis, arching outward to open stomata, and become flaccid to close them.
- C.Stomata open when guard cells lose water by evaporation and close when they absorb water from adjacent cells.
- D.Guard cells control stomatal movement by changing their shape due to temperature fluctuations, not turgor pressure.
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3.Osmosis and diffusion are the same except that in osmosis there is
- A.a freely permeable membrane
- B.a cell wall in between
- C.a selectively permeable membrane in between
- D.an endless inflow of water into a cell
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4.Which instrument is used to measure root pressure in plants?
- A.Barometer
- B.Manometer
- C.Hygrometer
- D.Potometer
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5.A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?
- A.Isotonic sugar solution
- B.Hypotonic salt solution
- C.Hypertonic salt solution
- D.Isotonic salt solution
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