-The illustration depicts five types of intercellular chemical signals. What kind of signal does "B" represent?
A) paracrine
B) neurotransmitter
C) neuropeptide
D) autocrine
E) endocrine

Question

-The illustration depicts five types of intercellular chemical signals. What kind of signal does "B" represent?
A) paracrine 
B) neurotransmitter 
C) neuropeptide 
D) autocrine 
E) endocrine

Quizplus · Accepted Answer

Paracrine signals are released by a cell and act on nearby cells. In the illustration, signal "B" is released by a cell and acts on a nearby cell, so it represents a paracrine signal.

-The Illustration Depicts Five Types of Intercellular Chemical Signals