Which photoreceptor type enables us to see in dim light?

The ability to see in dim light is primarily attributed to rod photoreceptors in the retina. Rods are highly sensitive to light and can respond to low levels of illumination, making them crucial for night vision and seeing in dark environments. Unlike cones, which are responsible for color vision and function best in bright light, rods allow us to perceive shapes and motions in low-light conditions.

Rods contain a photopigment called rhodopsin, which is effective in capturing photons in situations where light is scarce. This photopigment structure enables rods to be more efficient at detecting light compared to cones, contributing significantly to our ability to navigate and function in dimly lit areas. Thus, the presence and function of rods are essential for the visual system to operate effectively under low light, distinguishing them as the correct choice for this question.