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Earn 100
Space between cornea and lens is
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Important Questions on Neural Control and Coordination
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The photosensitive compound in the human eye is made up of:
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In the mammalian eye, the 'fovea' is the the center of the visual field, where:
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Which of the following statement is correct?
(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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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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In a blind spot of the human eye
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Which of the following statements is correct?
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Short sightedness in humans can be corrected by using:
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Scientists find a gene that helps human peripheral neurons to sense temperature less than and induce a physiological signal of avoidance. This gene is present in almost all vertebrates. Considering that gene has role only in detection of low temperature, the correct statement(s) is(are)
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Which statement is CORRECT regarding blind spot in human eye?
It ___________.
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Draw a labelled diagram of the internal ear and explain the mechanism of hearing.
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A gymnast is able to balance his body upside down even in the total darkness because of:
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In mammals, quadrate is modified as
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Which one of the following parts of the eye is affected in cataract?
HARD
Choose the correct statements.
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Consider the following vision defects listed in Columns I and II and the corrective measures in Column III. Choose the correct combination.
| P. | Hypermetropia | Near-sightedness | a. | Convex lens | |
| Q. | Myopia | (ii) | Far-sightedness | b. | Concave lens |
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Match the following columns and select the correct option.
| Column-I | Column-II | ||
| (a) | Organ of Corti | (i) | Connects middle ear and pharynx |
| (b) | Cochlea | (ii) | Coiled part of the labyrinth |
| (c) | Eustachian tube | (iii) | Attached to the oval window |
| (d) | Stapes | (iv) | Located on the basilar membrane |
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How do Rods and Cones of human Dye differ from each other chemically and functionally ?
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When one goes from a brightly lit area to a dimly lit room our eyes adjusts slowly, thereby regaining the clarity of vision. Which ONE of the following explains this process?
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The transparent lens in the human eye is held in its place by
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Which one of the following statements is not correct?
