The retina contains a type of photoreceptor (non-Rod and non-Cone) that is slowly excited by light signals received through the photopigment (A)______ which is (B)___________.

a. (A) melatonin, (B) G protein coupled receptor
b. (A) carotenoid, (B) steroid hormone receptor
c. (A) melanopsin, (B) G protein coupled receptor
d. (A) carotenoid, (B) small GTPase


Answer: c. (A) melanopsin, (B) G protein coupled receptor

Biology & Microbiology

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Which portion of the accompanying figure would be connected to the oval window of the cochlea?


a. 1
b. 2
c. 3
d. 6
e. 8

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What will be an ideal response?

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Choose the one most appropriate response for each. Some letters may not be used.

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