Where are photopigments located?

Photopigments are primarily located in the photoreceptor cells of the retina, specifically in the outer segments of rods and cones. In rods, the main photopigment is rhodopsin, while cones contain different types of photopigments (photopsins) that are sensitive to various wavelengths of light. These photopigments play a crucial role in the phototransduction process, converting light into electrical signals for visual processing.