AP BIOLOGY

Detailed explanation-1: -Regardless of the nature of the signal, the target cell responds by means of a specific protein called a receptor, which specifically binds the signal molecule and then initiates a response in the target cell.

Detailed explanation-2: -How Do Cells Recognize Signals? Cells have proteins called receptors that bind to signaling molecules and initiate a physiological response. Different receptors are specific for different molecules.

Detailed explanation-3: -Many cell signals are carried by molecules that are released by one cell and move to make contact with another cell. Signaling molecules can belong to several chemical classes: lipids, phospholipids, amino acids, monoamines, proteins, glycoproteins, or gases.

Detailed explanation-4: -Answer and Explanation: The type of protein that detects a signal molecule and induces a signal Cascade in response is a cellular receptor. There are many different types of cell receptors such as tyrosine kinases.

Detailed explanation-5: -A signal is detected when the chemical signal (also known as a ligand) binds to a receptor protein on the surface of the cell or inside the cell. 2. Transduction: When the signaling molecule binds the receptor it changes the receptor protein in some way. This change initiates the process of transduction.