Rhodopsin is a light-sensitive protein found in the photoreceptor cells of the retina, specifically in the rods. It plays a crucial role in the process of vision, allowing us to see in low-light conditions. When light hits rhodopsin, it undergoes a chemical change that triggers a series of reactions, ultimately sending signals to the brain. This protein is composed of a retinal molecule bound to a protein called opsin. The conversion of light into electrical signals is essential for our ability to perceive images in dim environments. Without rhodopsin, our night vision would be severely impaired.