Question

Contrast the structure and function of steroid versus non-steroid hormones giving an example of each.

Answer 1

Steroid hormones	non steroid hormones
Steroid hormones are the hormones synthesized from cholesterol or its derivatives. Steroid hormones are secreted by adrenal cortex, gonads and placenta.	These hormones are derived from amino acids.
Made up of cholesterol	made up of amino acids
Small hydrophobic molecules.	large or small hydrophobic molecules.
Synthesised in smooth er	Synthesised in rough er
Synthesised When needed	Secreted only when signals are received. Untill they are stored.
Transported through blood stream with protein carriers.	Freely transported through blood streak.
Receptors on the cell surface	Receptors inside nucleus
Secondary messengers	bind to dna and modify the transcription
Slow action	rapid action
Permanent action	temporary action
Estrogen	calciton