NEET Biology MCQs Set 1:
Categories: MCQS
Q.1. The main function of the cornea present in the human eye is
(a) structural support to the eye
(b) bends light before it reaches the lens
(c) changes the shape of the lens enabling image to be focused on the retina
(d) contains a concentrated amount of cone cells on the correct orientation
Answer: (b) bends light before it reaches the lens
Q.2. The type of cells found in retina are
(a) Purkinje cells
(b) Schwann cells
(c) Neuroglial cells
(d) Amacrine cells
Answer: (d) Amacrine cells
Q.3. Where will the image of a distant object be formed when a person using a concave lens to correct vision, is not using glasses?
(a) behind retina
(b) in front of the retina
(c) on the blindspot
(d) on the yellow spot
Answer: (b) in front of the retina
Q.4. A cornea transplant is never rejected in humans because
(a) it consists of enucleated cells
(b) it is a non-living layer
(c) it has no blood supply
(d) its cells are least penetrable by bacteria
Answer: (c) it has no blood supply
Q.5. This is an incorrect statement
(a) rhodopsin is the purplish-red protein situated in rods only
(b) Retinal is a derivative of Vitamin C
(c) Retinal is the light-absorbing part of visual photopigments
(d) the rods in the retina have rhodopsin, a photopigment while cones have three different photopigments
Answer: (b) Retinal is a derivative of Vitamin C
Q.6. The fovea is the mammalian eye is the centre of the visual field wherein
(a) the optic nerve exits the eye
(b) only rods are found
(c) more rods than cones are found
(d) no rods but a high density of cones occur
Answer: (d) no rods but a high density of cones occur
Q.7. In the human eye, the photosensitive compound is composed of
(a) guanosine and retinol
(b) transducin and retinene
(c) opsin and retinol
(d) opsin and retinal
Answer: (d) opsin and retinal
Q.8. The eye lens is
(a) Concave
(b) Convex
(c) Biconcave
(d) Biconvex
Answer: (d) Biconvex
Q.9. The persistence of vision for the human eye is
(a) 1/6th of a second
(b) 1/10th of a second
(c) 1/16th of a second
(d) 1/18th of a second
Answer: (c) 1/16th of a second
Q.10. What does the tapetum lucidum do?
(a) it is the coloured part of the eye
(b) gives animals night vision
(c) transparent jelly-like fluid
(d) it is the area where the optic never attaches
Answer: (b) gives animals night vision