Chemical signals called paracrine signals are transported from the secreting cell to a target cell by
A) nearby cells.
B) the nervous system.
C) the circulatory system.
D) gap junctions.
E) the surrounding extracellular fluid.

Question

Quizplus · Accepted Answer

Paracrine signals are chemical messengers that act locally, meaning they travel a short distance through the extracellular fluid to the target cell. They do not require the circulatory system or nervous system for transport, nor do they rely on gap junctions or nearby cells. Therefore, the surrounding extracellular fluid is the best answer for how paracrine signals are transported.

Chemical Signals Called Paracrine Signals Are Transported from the Secreting