Question

chapter 15 multiple choice question 43
1 part of 1 point

dark adaptation ______.

results in inhibition of rod function

primarily involves improvement of acuity and color vision

involves accumulation of rhodopsin

is much faster than light adaptation

Explanation:

To solve this, we analyze each option:

• "results in inhibition of rod function": Dark adaptation relies on rods (they are more active in low light), so this is incorrect.
• "primarily involves improvement of acuity and color vision": Cones are for acuity/color, rods (involved in dark adaptation) are for low - light, non - color vision. So this is incorrect.
• "involves accumulation of rhodopsin": Rhodopsin (visual pigment in rods) is used in light and regenerates (accumulates) during dark adaptation, allowing better vision in low light. This is correct.
• "is much faster than light adaptation": Light adaptation is faster (takes seconds), dark adaptation takes minutes. So this is incorrect.

Answer:

C. involves accumulation of rhodopsin (assuming the options are labeled A - D with A as "results in inhibition of rod function", B as "primarily involves improvement of acuity and color vision", C as "involves accumulation of rhodopsin", D as "is much faster than light adaptation")