Choose the correct statement.

1. Meissner's corpuscles are thermoreceptors.

2. Photoreceptors in the human eye are depolarized during darkness and become hyperpolarized in response to the light stimulus.

3. Receptors do not produce graded potentials.

4. Nociceptors respond to changes in pressure.

Doubtly Asked 30 Oct 2026 NEET UG 2016 Phase 2 Practice test neet Save WhatsApp Report

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Answer: 2. Photoreceptors in the human eye are depolarized during darkness and become hyperpolarized in response to the light stimulus.

Go through the statements one by one.

Meissner's corpuscles are touch receptors, not thermoreceptors. Wrong.
In darkness, rods and cones are depolarised because Na⁺ channels stay open. Light closes them and the cell becomes hyperpolarised. Correct.
Receptors do produce graded (receptor) potentials. Wrong.
Nociceptors detect pain, not pressure. Wrong.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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