AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: The type of protein that detects a signal molecule and induces a signal Cascade in response is a cellular receptor.

Detailed explanation-2: -Receptor-a protein that detects a signal molecule and performs an action in response.

Detailed explanation-3: -Cells have proteins called receptors that bind to signaling molecules and initiate a physiological response. Different receptors are specific for different molecules.

Detailed explanation-4: -Signaling molecules bind to the extracellular domain of two nearby tyrosine kinase receptors, which then dimerize. Phosphates are then added to tyrosine residues on the intracellular domain of the receptors and can then transmit the signal to the next messenger within the cytoplasm.

Detailed explanation-5: -Hundreds of different G-protein-linked receptors have been identified. Well-known examples include the -adrenergic receptor, the muscarininc type of acetylcholine receptor, metabotropic glutamate receptors, receptors for odorants in the olfactory system, and many types of receptors for peptide hormones.