Question Paper
Class / Subject: Class 10 (ICSE) · Biology
Chapter: Chapter 11 — Chapter 11: The Sense Organs
Time Allowed: 32 minutes
Max Marks: 16
1. What do rods in the retina detect? [1]
(A) Light intensity (night vision)
(B) Colour only
(C) Sound
(D) Touch
2. What do cones in the retina detect? [1]
(A) Colour
(B) Light intensity only
(C) Sound
(D) Touch
3. What does the lens do in the eye? [1]
(A) Focuses light onto the retina
(B) Detects sound
(C) Detects touch
(D) Nothing important
4. What adjusts the lens shape? [1]
(A) Ciliary muscles
(B) The retina itself
(C) The cornea
(D) The pupil alone
5. What is accommodation in the eye? [1]
(A) Adjusting lens shape for near/far vision
(B) Adjusting eye colour
(C) Adjusting pupil colour
(D) No such process
6. What converts sound vibrations to nerve impulses? [1]
(A) The cochlea
(B) The retina
(C) The lens
(D) The pupil
7. What helps maintain balance in the ear? [1]
(A) Semicircular canals
(B) The cochlea only
(C) The eardrum only
(D) The outer ear only
8. Why study sense organs? [1]
(A) To understand how we perceive our environment
(B) No reason
(C) It's not useful
(D) Only for tests
9. What do rods in the retina detect? [1]
(A) Light intensity (night vision)
(B) Colour only
(C) Sound
(D) Touch
10. What do cones in the retina detect? [1]
(A) Colour
(B) Light intensity only
(C) Sound
(D) Touch
11. What does the lens do in the eye? [1]
(A) Focuses light onto the retina
(B) Detects sound
(C) Detects touch
(D) Nothing important
12. What adjusts the lens shape? [1]
(A) Ciliary muscles
(B) The retina itself
(C) The cornea
(D) The pupil alone
13. What is accommodation in the eye? [1]
(A) Adjusting lens shape for near/far vision
(B) Adjusting eye colour
(C) Adjusting pupil colour
(D) No such process
14. What converts sound vibrations to nerve impulses? [1]
(A) The cochlea
(B) The retina
(C) The lens
(D) The pupil
15. What helps maintain balance in the ear? [1]
(A) Semicircular canals
(B) The cochlea only
(C) The eardrum only
(D) The outer ear only
16. Why study sense organs? [1]
(A) To understand how we perceive our environment
(B) No reason
(C) It's not useful
(D) Only for tests