What is another name for photopigment found in rod photoreceptors?

Rhodopsin is the primary photopigment found in rod photoreceptors, which are specialized cells in the retina responsible for vision in low-light conditions. This pigment plays a crucial role in the phototransduction pathway, where light is absorbed and converted into electrical signals that are transmitted to the brain.

Rhodopsin consists of a protein called opsin and a light-sensitive chromophore called retinal, which undergoes a structural change when exposed to photons. This transformation initiates a cascade of biochemical reactions that ultimately result in the perception of light.

The other names listed refer to different types of photopigments associated with cone photoreceptors, which are responsible for color vision and function best in bright light. Chlorolabe is related to green-sensitive cones, Cyanolabe pertains to blue-sensitive cones, and Erythrolabe is connected to red-sensitive cones. Thus, while these other options are valid photopigments for different types of photoreceptors, rhodopsin is the specific photopigment associated with the rod photoreceptors.