How does light excite a rod or cone?
A) It heats up the fluid in the receptor.
B) It converts 11-cis-retinal into all-trans-retinal.
C) It converts leu-enkephalin into met-enkephalin.
D) It ionizes neutral sodium into a positively charged ion.
Correct Answer:
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Q24: _ modify the _ sensitivity to different
Q26: Chemicals that release energy when struck by
Q27: In comparison to the rods,cones are more
Q32: Light energy converts 11-cis-retinal to _.
A) opsins
B)
Q33: Night-active species are more likely than day-active
Q37: In comparison to cones,rods _.
A)are more common
Q70: Why do humans perceive faint light better
Q71: If you wanted to see a faint
Q75: More than a century ago, researchers had
Q78: Initially, researchers determined how many types of
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