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

Question

Quizplus · Accepted Answer

Hormones are chemical substances secreted by cells that regulate the metabolic function of other cells in the body. Enzymes, proteins, and antibodies can also be secreted by cells, but they do not specifically regulate metabolism in other cells like hormones do.

Chemical Substances Secreted by Cells into the Extracellular Fluids That