Chemical signals secreted into the interstitial fluid that only affect target cells near the secretory cell are called

Question

Quizplus · Accepted Answer

Local regulators are chemical signals that act on nearby, or local, target cells without being transported in the bloodstream. Hormones are chemical signals that are transported through the bloodstream to act on distant target cells. Pheromones are chemical signals that are produced by one organism and affect the behavior or physiology of another organism, often of the same species. Second messengers are molecules that relay signals from the cell surface to the interior of the cell, but they do not necessarily only affect nearby target cells. Therefore, the best choice for the given description is local regulators.

Chemical Signals Secreted into the Interstitial Fluid That Only Affect