Choose the correct statement.

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(C) The correct statement is $C$. Photoreceptors in the human eye are unique because they are the only type of sensory cells that are relatively depol

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Photoreceptors in the human eye are depolarised during darkness and become hyperpolarised in response to the light stimulus.

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(C) The correct statement is $C$. Photoreceptors in the human eye are unique because they are the only type of sensory cells that are relatively depolarised (about $-35 \ mV$) when at rest (i.e.,in the dark),and they become hyperpolarised (to about $-70 \ mV$) in response to an adequate light stimulus. Nociceptors respond to potentially damaging stimuli that result in pain,not pressure. Meissner's corpuscles are a type of mechanoreceptor responsible for touch sensitivity,not thermoreception. Receptors generally produce graded potentials known as receptor potentials.

Column-$I$ (Chamber)	Column-$II$ (Description)
$P$. Aqueous chamber	$I$. Filled with transparent gel
$Q$. Vitreous chamber	$II$. Space between cornea and lens
	$III$. Space between lens and retina
	$IV$. Filled with thin watery fluid

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Match the following columns regarding the chambers of the human eye:
Column-$I$ (Chamber) Column-$II$ (Description)
$P$. Aqueous chamber $I$. Filled with transparent gel
$Q$. Vitreous chamber $II$. Space between cornea and lens
$III$. Space between lens and retina
$IV$. Filled with thin watery fluid

The '$Pecten$' is a structure found in the eye of which of the following?

Which of the following is not a part of the human eye?

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