Human Receptors Multiple Choice Questions with Answers – PDF Download

MCQ 1: When the iris muscles of the eye contracts, the pupil constricts in:

1. dim light
2. bright light
3. green colored light
4. red colored light

MCQ 2: The pigment present in the rods located in the retina is called:

1. vitreous fovea
2. rhodopsin
3. iodopsin
4. aqueous fovea

MCQ 3: Considering the inability of day time blindness, the owl can see at night because of the presence of:

1. retina
2. cones
3. rods
4. fovea

MCQ 4: The external part of the ear which is covered with skin and made up of cartilage is called:

1. pinna
2. auditory canal
3. ear drum
4. incus

MCQ 5: The person suffering from the long sight disorder is not able to see the:

1. distant objects clearly
2. near objects clearly
3. blue objects clearly
4. red objects clearly