Hormone — Science definition
A chemical messenger released into the blood by a gland; slower than a nerve signal and carried everywhere.
Where it is taught
- Homeostasis, Feedback & Interacting Systems — Coordination, Defense & Reproduction, Life Science & Scientific Inquiry, Grade 7
In use
Some corrections travel by nerve and some by hormone, a chemical messenger released into the blood by a gland.
Homeostasis, Feedback & Interacting Systems
Questions using hormone
Problem 1
Why should a hormone model show responsive target cells?
Answer and explanation
Cells differ in their ability to respond to a particular signal; transport everywhere does not mean the same response everywhere.