Concept explainers
Interpretation:
Hormone and its functions have to be explained. It should be determined that how is the presence of a hormone detected by its target.
Concept Introduction:
Hormones are chemical substances synthesized in small amounts by endocrine tissues and carried by blood stream to another tissue, where it acts as a messenger to regulate the function of the target tissue or organ.
A given hormone usually affects only a limited number of cells, which are called target cells and it responds to a hormone because it bears receptors for the hormone.
There are three major classes of molecules which function as hormones in vertebrates and they are,
- Amino acid derivatives: It is a derivative of an amino acid formed by the reaction at the side chain functional group, carboxylic acid group, and amino group or by the replacement of a hydrogen atom by heteroatom.
- Polypeptides: Polypeptides are organic
polymers having several amino acids attached to each other in a chain. - Steroid: Steroids are a type of organic compound having a molecular structure with four rings connected to each other.
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Fundamentals of General, Organic, and Biological Chemistry, Books a la Carte Edition; Modified Mastering Chemistry with Pearson eText -- ValuePack ... and Biological Chemistry (4th Edition)
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