QuestionAugust 23, 2025

Select the statement below that is NOT true with regards to the process of light adaptation. Rhodopsin is uncoupled from light transduction. Retinal sensitivity decreases. Visual acuity is diminished. The activity of rods is reduced by rapid bleaching of rhodopsin.

Select the statement below that is NOT true with regards to the process of light adaptation. Rhodopsin is uncoupled from light transduction. Retinal sensitivity decreases. Visual acuity is diminished. The activity of rods is reduced by rapid bleaching of rhodopsin.
Select the statement below that is NOT true with regards to the process of light adaptation.
Rhodopsin is uncoupled from light transduction.
Retinal sensitivity decreases.
Visual acuity is diminished.
The activity of rods is reduced by rapid bleaching of rhodopsin.

Solution
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Answer

Rhodopsin is uncoupled from light transduction. Explanation 1. Analyze each statement Evaluate the truthfulness of each statement regarding light adaptation. - **Rhodopsin is uncoupled from light transduction**: False. Rhodopsin remains coupled to light transduction; it is involved in the process. - **Retinal sensitivity decreases**: True. Light adaptation involves decreased sensitivity to prevent overstimulation. - **Visual acuity is diminished**: False. Visual acuity typically improves as cones become more active during light adaptation. - **The activity of rods is reduced by rapid bleaching of rhodopsin**: True. Rods are less active due to rhodopsin bleaching in bright light.

Explanation

1. Analyze each statement<br /> Evaluate the truthfulness of each statement regarding light adaptation.<br /><br />- **Rhodopsin is uncoupled from light transduction**: False. Rhodopsin remains coupled to light transduction; it is involved in the process.<br />- **Retinal sensitivity decreases**: True. Light adaptation involves decreased sensitivity to prevent overstimulation.<br />- **Visual acuity is diminished**: False. Visual acuity typically improves as cones become more active during light adaptation.<br />- **The activity of rods is reduced by rapid bleaching of rhodopsin**: True. Rods are less active due to rhodopsin bleaching in bright light.
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