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

Question

Quizplus · Accepted Answer

Hormones are chemical messengers secreted by endocrine glands that travel through the bloodstream to activate specific receptors on target cells, regulating their metabolic function. Enzymes are involved in chemical reactions but do not regulate other cells, antibodies are molecules that bind to specific foreign substances to induce an immune response, and proteins are important macromolecules with many diverse functions but are not specifically secreted to regulate other cells.

Chemical Substances Secreted by Cells into the Extracellular Fluids and That