Sequence diagrams are a type of UML diagram used to illustrate how objects interact in a particular sequence of events within a system. They provide a clear visualization of the order and timing of messages exchanged between objects, making them essential for understanding system behavior and communication flow.
Rhodopsin is a light-sensitive receptor protein found in the photoreceptor cells of the retina, crucial for vision in low-light conditions. It undergoes a conformational change upon absorbing photons, initiating a biochemical cascade that converts light into electrical signals processed by the brain.
Signal transduction is the process by which a cell converts an extracellular signal into a functional response, involving a series of molecular events typically initiated by the binding of a signaling molecule to a receptor. This process is crucial for cells to respond to their environment, regulate cellular activities, and maintain homeostasis.
Photoreception is the process by which organisms detect and respond to light, primarily through specialized cells called photoreceptors. This mechanism is crucial for vision in animals and also plays a role in regulating circadian rhythms and other biological processes in both plants and animals.