The smell that first hits you when you open a bag of popcorn is perhaps one of the most satisfying, but it may be harmful to your health.
Chemical Nature of Hormones. Chemically, hormones may be classified as either proteins or steroids. All of the hormones in the human body, except the sex hormones and those from the adrenal cortex, are proteins or protein derivatives.ome endocrine glands secrete hormones in response to other hormones. The hormones that cause secretion of other hormones are called tropic hormones. A hormone from gland A causes gland B to secrete its hormone.
Glands and Tissues that produce Hormones. Hormones are chemicals (sometimes called chemical messengers) that are produced (synthesized) and released (secreted) by the endocrine system. In many cases hormones are secreted by the main endocrine glands in the human body.