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cell signaling

QuestionAnswer
signals diffuse around to affect the cells that make them Autocrine
signals diffuse to and affect nearby cell Paracrine
signal produced by one cell and travel through the circulatory system to effect their target cell, the signal is called a hormone Endocrine
any molecule that binds to a receptor site of another (usually larger) molecule Ligand
a protein on the plasma membrane or in the cytoplasm which a specific ligand binds Receptor
second component of a signal transduction pathway Responder
receptor that after binding of a ligand, the receptor changes conformation to become activated and transfer phosphates groups to another protein Protein kinase receptor
intracellular membrane protein involved in signal transduction; characterized by binding GDP or GTP G protein
Created by: ksams7
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