Why do cones have higher acuity than rods
A)because cones respond more to dim light
B)because there are three types of cones
C)because there is little convergence in the cone pathways within the retina
D)because there are more cones than rods

Question

Quizplus · Accepted Answer

Cones have higher acuity than rods because there is little convergence in the cone pathways within the retina. In other words, each cone cell connects to a single bipolar cell, which then connects to a single ganglion cell, resulting in a one-to-one correspondence between photoreceptor cells and ganglion cells. This allows for greater spatial resolution and acuity. Rod cells, on the other hand, have many more cells converging onto a single ganglion cell, resulting in lower acuity but greater sensitivity to light. The other options (A, B, and D) are not correct because cones do not respond more to dim light (in fact, they require higher light levels than rods), there are three types of cones but this alone does not explain higher acuity, and there are actually more rods than cones in the human retina.

Why Do Cones Have Higher Acuity Than Rods