Question

eye - structure and function - multiple choice test
questions

1. what part of the eye protects it from dust and damage?

a) lids
b) cones
c) retina
d) iris

1. the colored part of the eye that controls pupil size is the

a) retina
b) iris
c) lids
d) optic nerve

1. which part of the eye sends visual information to the brain?

a) rods
b) cones
c) optic nerve
d) cornea

1. rods are best at detecting

a) color
b) fine detail
c) black, white, and night - vision
d) motion only

Explanation:

1. Lenses can be damaged by scratches etc.
2. The iris is the colored part controlling pupil size.
3. The optic nerve sends visual info to the brain.
4. Rods are best at detecting black - white and night vision.

Answer:

1. a. Lenses
2. b. Iris
3. c. Optic Nerve
4. c. Black, white, and night vision