Difficulty: Medium
Average Score: 88%
Entry Exam
What are chemical messengers that control growth, differentiation, and the metabolism of specific target cells called?
Correct answer
A
Rationale
Hormones are signaling molecules produced by glands that travel through the bloodstream to target cells, exerting control over processes like growth, differentiation, and metabolism. Neurons are nerve cells responsible for transmitting electrical impulses. Glands are structures that secrete substances like hormones. Second messengers are molecules involved in intracellular signal transduction pathways, amplifying and transmitting signals from the cell membrane to the nucleus.