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Earn 100

Night blindness is caused by the defect of cones.
(a)True
(b)False

50% studentsanswered this correctly
Important Questions on Neural Control and Coordination
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Match the following columns and select the correct option:-
Column | column | ||
(a) | Rods and cones | (i) | Absence of photoreceptor cells |
(b) | Blind spot | (ii) | Cones are densely packed |
(c) | Fovea | (iii) | Photoreceptor cells |
(d) | Iris | (iv) | Visible coloured portion of the eye |

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Which statement is CORRECT regarding blind spot in human eye?
It ___________.

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HARD

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(i) The rods contain a purplish-red protein called the rhodopsin.
(ii) The photopigments are embedded in the membrane discs of the inner segment.
(iii) Retinal is a derivative of vitamin A.
(iv) Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin.

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