Question Paper
Class / Subject: Class 10 (ICSE) · Biology
Chapter: Chapter 5 — Chapter 5: Transpiration
Time Allowed: 32 minutes
Max Marks: 16
1. What are stomata? [1]
(A) Tiny pores mainly on leaf surfaces
(B) Large openings on stems
(C) Root structures
(D) Flower parts
2. What controls stomata opening and closing? [1]
(A) Guard cell turgidity
(B) Root pressure only
(C) Leaf colour
(D) Stem thickness
3. What is transpiration pull? [1]
(A) A pull effect helping draw water up the xylem
(B) A push effect at the roots
(C) No effect on water movement
(D) A pull effect in the phloem
4. What factors affect transpiration rate? [1]
(A) Temperature, humidity, wind, light
(B) Only soil type
(C) Only root length
(D) Only leaf colour
5. What does transpiration help with besides water transport? [1]
(A) Cooling the plant
(B) Heating the plant
(C) Making the plant heavier
(D) Nothing else
6. What human process is transpiration similar to? [1]
(A) Sweating
(B) Breathing
(C) Digestion
(D) Blinking
7. Where does most transpiration occur? [1]
(A) Through stomata on leaves
(B) Through the roots
(C) Through the stem bark
(D) Through flowers only
8. Why study transpiration? [1]
(A) To understand water transport and plant cooling
(B) No reason
(C) It's not useful
(D) Only for tests
9. What are stomata? [1]
(A) Tiny pores mainly on leaf surfaces
(B) Large openings on stems
(C) Root structures
(D) Flower parts
10. What controls stomata opening and closing? [1]
(A) Guard cell turgidity
(B) Root pressure only
(C) Leaf colour
(D) Stem thickness
11. What is transpiration pull? [1]
(A) A pull effect helping draw water up the xylem
(B) A push effect at the roots
(C) No effect on water movement
(D) A pull effect in the phloem
12. What factors affect transpiration rate? [1]
(A) Temperature, humidity, wind, light
(B) Only soil type
(C) Only root length
(D) Only leaf colour
13. What does transpiration help with besides water transport? [1]
(A) Cooling the plant
(B) Heating the plant
(C) Making the plant heavier
(D) Nothing else
14. What human process is transpiration similar to? [1]
(A) Sweating
(B) Breathing
(C) Digestion
(D) Blinking
15. Where does most transpiration occur? [1]
(A) Through stomata on leaves
(B) Through the roots
(C) Through the stem bark
(D) Through flowers only
16. Why study transpiration? [1]
(A) To understand water transport and plant cooling
(B) No reason
(C) It's not useful
(D) Only for tests