Chemical substances secreted by cells into the extracellular fluids and that regulate the metabolic function of other cells in the body are called ________.
A) proteins
B) enzymes
C) antibodies
D) hormones

Question

Quizplus · Accepted Answer

Hormones are chemical messengers secreted by cells into the extracellular fluids and are essential for regulating the metabolic function of other cells in the body. Proteins, enzymes, and antibodies may also be secreted by cells, but they do not necessarily serve the same function as hormones.

Chemical Substances Secreted by Cells into the Extracellular Fluids and That