Home » Chemical messengers secreted by ductless glands are called___________ Endocrine System MCQs Chemical messengers secreted by ductless glands are called___________ February 11, 2022 13 Views Q. Chemical messengers secreted by ductless glands are called___________ A. Platelets B. Plasma C. FEMA act D. Hormones Answer: Hormones
The hormones known as “catecholamines” (adrenaline, noradrenaline and dopamine) are not lipid soluble. Therefore their receptor sites are