Question Paper
Class / Subject: Class 9 (ICSE) · Biology
Chapter: Chapter 7 — Chapter 7: Respiration in Plants
Time Allowed: 32 minutes
Max Marks: 16
1. Where does respiration occur in plants? [1]
(A) All plant cells
(B) Only leaves
(C) Only roots
(D) Only flowers
2. What does respiration use? [1]
(A) Oxygen to break down glucose
(B) Only sunlight
(C) Only water
(D) Nothing specific
3. What does respiration release? [1]
(A) Energy, carbon dioxide and water
(B) Only oxygen
(C) Only glucose
(D) Nothing useful
4. When does respiration occur? [1]
(A) Continuously, day and night
(B) Only during the day
(C) Only during the night
(D) Only in sunlight
5. When does photosynthesis occur? [1]
(A) Only in light
(B) Continuously, day and night
(C) Only at night
(D) Never in plants
6. What does the respiration equation show? [1]
(A) Glucose and oxygen converting to CO2, water, energy
(B) Only oxygen production
(C) Only glucose production
(D) Nothing useful
7. What does respiration energy support? [1]
(A) Growth and life processes
(B) Nothing important
(C) Only flower colour
(D) Only seed production
8. How are respiration and photosynthesis related? [1]
(A) They are complementary processes
(B) They are identical
(C) They are unrelated
(D) They cancel each other completely
9. Where does respiration occur in plants? [1]
(A) All plant cells
(B) Only leaves
(C) Only roots
(D) Only flowers
10. What does respiration use? [1]
(A) Oxygen to break down glucose
(B) Only sunlight
(C) Only water
(D) Nothing specific
11. What does respiration release? [1]
(A) Energy, carbon dioxide and water
(B) Only oxygen
(C) Only glucose
(D) Nothing useful
12. When does respiration occur? [1]
(A) Continuously, day and night
(B) Only during the day
(C) Only during the night
(D) Only in sunlight
13. When does photosynthesis occur? [1]
(A) Only in light
(B) Continuously, day and night
(C) Only at night
(D) Never in plants
14. What does the respiration equation show? [1]
(A) Glucose and oxygen converting to CO2, water, energy
(B) Only oxygen production
(C) Only glucose production
(D) Nothing useful
15. What does respiration energy support? [1]
(A) Growth and life processes
(B) Nothing important
(C) Only flower colour
(D) Only seed production
16. How are respiration and photosynthesis related? [1]
(A) They are complementary processes
(B) They are identical
(C) They are unrelated
(D) They cancel each other completely