ICSE Class 10 Transpiration — Mock Test (2027)

Free online mock test for Transpiration (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.

Sample questions

1. 1.Priya learned about different theories explaining stomatal movement. She summarized the following:

   Theory	Explanation
   P	Starch is converted to sugar in light to open stomata
   Q	Potassium ion accumulation causes stomata to open in light

   Identify the correct pair of theories: (a) P – Active potassium ion transport, Q – Starch-sugar interconversion (b) P – Starch-sugar interconversion, Q – Active potassium ion transport (c) P – Cuticular transpiration, Q – Lenticular transpiration (d) P – Guard cell transport theory, Q – Water absorption theory
2. 2.What is the scientific term for the exudation of sap from injured parts of a plant?
   • A.Guttation
   • B.Bleeding
   • C.Transpiration
   • D.Excretion
3. 3.Why does a well-watered potted plant show wilting of leaves on a hot sunny day?
   • A.The roots absorb too much water, causing leaf cells to burst.
   • B.The rate of transpiration exceeds the rate of water absorption by roots.
   • C.The plant undergoes dormancy due to excessive heat.
   • D.The leaves lose chlorophyll due to intense sunlight.
4. 4.Guard cells
   • A.Regulate the closing of stomata
   • B.Regulate the opening and closing of stomata
   • C.Regulate the opening of stomata
   • D.Regulate the process of photosynthesis
5. 5.Which of the following is NOT an adaptation found in plants to reduce transpiration?
   • A.Presence of sunken stomata.
   • B.Leaf modified into spines.
   • C.Presence of thin cuticle on the epidermis.
   • D.Reduced leaf surface area.