BI110 Chapter Notes - Chapter 137: Adrenergic, Glycogen, Hydrophile
Document Summary
Cell responds to a signal that it secretes. Local regulator: the chemical signalling molecule in the cell. This binds to a il - 2 receptor on the t cell casein clonal expansion. This means the cell divides and differentiates. Elicits a response in cells close to the signalling cell. A hormone circulates in blood that will eventually secrete it to the target cell. Cells that secrete hormones are part of the endocrine system. Found in stomach and other various organs. Metabolism, salt balance, growth and development, and reproduction are all part of the endocrine system. Stim of specialized neurons causes the release of neurohormones. These travel throughout the body and affect cells the same way other target signals do. Signalling molecules that some animals use to communicate, by releasing them into the environment. Ants nd food, leave a pheromone trail so other ants can nd it. Hormone binds to receptor, trigger conformational change.