Question

What is the physical and chemical specialities of hormones?

Answer 1

Answer:

A hormone (from the Greek participle ὁρμῶν, "setting in motion") is any member of a class of signaling molecules, produced by glands in multicellular organisms, that are transported by the circulatory system to target distant organs to regulate physiology and behavior.[1] Hormones have diverse chemical structures, mainly of three classes:

eicosanoids

steroids

amino acid

Answer 2

Special features of hormones include:

• They are secreted by endocrine cells

• They are chemical signals

• They circulate in bodily fluids

• They regulate behaviour of other cells

• They do not catalyse any reactions

• They may or may not be proteinaceous

• They are secreted as per the need and not stored