In the mammalian eye,1‒2 percent of ganglion cells are photosensitive.If these cells were not photosensitive,which function would mammals be unable to carry out?

Question

Quizplus · Accepted Answer

The photosensitive ganglion cells, also known as the intrinsically photosensitive retinal ganglion cells (ipRGCs), are responsible for detecting light and regulating circadian rhythms. They play a critical role in the day-night cycle and help organisms to respond appropriately to changes in light intensity. Without these cells, mammals would be unable to regulate their internal clocks and have a disrupted sleep-wake cycle. Therefore, option E is the best choice.

In the Mammalian Eye,1‒2 Percent of Ganglion Cells Are Photosensitive