ICSE Class 10 Chemical Coordination in Plants — Mock Test (2027)
Free online mock test for Chemical Coordination in Plants (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 Chemical Coordination in Plants 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.Common gibberellin is _______
- A.GA₁
- B.GA₂
- C.GA₇
- D.GA₃
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2.Mohit observed that the leaves of a Mimosa plant fold when touched. He wonders what external stimulus causes this reaction. The leaves of Mimosa are sensitive to:
- A.Heat
- B.Touch
- C.Light
- D.Smell
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3.Which of the following is an advantage of senescence in plants?
- A.Old and inefficient organs are replaced by young and developing leaves, buds, flowers, and fruits.
- B.Senescence increases the rate of photosynthesis in older leaves.
- C.It prevents the formation of new roots and shoots.
- D.Senescence reduces the plant's ability to absorb water and nutrients.
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4.Assertion (A): Abscisic acid promotes stomatal closure during a drought. Reason (R): Abscisic acid helps the plant to conserve water during stress.
- A.(A) is true and (R) is false.
- B.(A) is false and (R) is true.
- C.Both (A) and (R) are true and (R) is the correct explanation of (A).
- D.Both (A) and (R) are true but (R) is not the correct explanation of (A).
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5.The plant hormone triggering the fall of mature leaves and fruits from plants is:
- A.Auxin
- B.Gibberellin
- C.Kinetin
- D.Abscisic acid
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