There are quite a few. Estrogen and testosterone are two of them.
STEROID
they are derived from cholesterolare derived from cholesterol molecules
No, it is lipid solubleIt is a steroid hormone based of cholesterol
Steroids are lipids that include complex rings of carbon and hydrogen atoms. All steroid hormones are derived from cholesterol.
Steroids are made with a ring of carbon atoms. Cholesterol is a steroid made in animals only. From cholesterol some important chemical messengers are made, like male hormone testosterone and female hormone estrogen. Cholesterol is eaten in foods and made in the body.
Cholesterol is a precursor for other important steroid molecules: the bile salts, steroid hormones, and vitamin D. -Gem :) http://www.ncbi.nlm.nih.gov/books/NBK22339/
Yes, vitamin D is derived from cholesterol.Hint: "Read your Physiology textbook.
Thryoxine is a hormone derived from the amino acid 'Tyrosine' and so is classed as an amino-acid derivative. (NB: Amino-acids are the basic structural units of a peptide/protein).
Sterols are a waxy, insoluble group of steroid alcohol derived from either plants or animals.
The male sex hormone testosterone and the female sex hormone estrogen are steroids.
Steroid Hormones only enter the bloodstream by diffusion. If you are a student taking anatomy/phyiso 2 and refering to this question: All steroid hormones are derived from (cholesterol). Which steroid hormone is produced is determined by the (enzymes) present in the cell. The common precursor molecule for all steroid hormones is (pregnenolone). Steroid hormones enter the blood stream by (diffusion) and (do) require a carrier. The rate of secretion of steroid hormones is (slower) then catecholemines because steroid hormones are not (stored). Hope that helps-
Insulin is a protein hormone therefore it is a non-steroid hormone.