Photopigment

Photopigments are light-sensitive molecules that play a crucial role in the process of vision in animals, including humans. These pigments are primarily found in the photoreceptor cells of the retina, specifically in rod and cone cells. There are two main types of photopigments: 1. **Rhodopsin**: This is the photopigment found in rod cells, which are responsible for vision in low-light conditions (scotopic vision).