Which photoreceptor cells are primarily responsible for color vision in bright light?

Which photoreceptor cells are primarily responsible for color vision in bright light?

• A. Rods
• B. Bipolar cells
• C. Cone (cells)
• D. Ganglion cells

Answer: (C)

Color vision in bright light comes mainly from cone cells. Cones are the photoreceptors that operate in high illumination and come in different pigment types tuned to shorter, middle, and longer wavelengths, which the brain combines to produce color. In dim light, rods take over for vision but cannot distinguish colors, so color perception drops. Bipolar and ganglion cells are processing neurons that relay signals from photoreceptors to the brain, rather than detecting color themselves.

Color vision in bright light comes mainly from cone cells. Cones are the photoreceptors that operate in high illumination and come in different pigment types tuned to shorter, middle, and longer wavelengths, which the brain combines to produce color. In dim light, rods take over for vision but cannot distinguish colors, so color perception drops. Bipolar and ganglion cells are processing neurons that relay signals from photoreceptors to the brain, rather than detecting color themselves.