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Which of the following is a stimulus for rhodopsin?

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Which of the following is a stimulus for rhodopsin?

(a) light

(b) acidic pH

(c) basic pH

(d) neurotoxins

I got this question during a job interview.

Question is taken from Cell Signaling and Signal Transduction in section Cell Signaling and Signal Transduction of Cell Biology

1 Answer

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Best answer
Right choice is (a) light

The best I can explain: Rhodopsin is a very stable G-protein coupled receptor. This receptor is always bound to a retinal group (the ligand). Rhodopsin is also a biological pigment in the retina and is very sensitive to light.

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