Lecture3_23 - 3/23/2010 Chapter 19 A hormone is a...

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3/23/2010 1 Chapter 19 A hormone is a biochemical substance, produced by a ductless gland, that has a messenger function. Hormones serve as a means of communication between various tissues. Some hormones are lipids. The lipids that play the role of ―chemical messengers‖ include: Steroid hormones derivatives of cholesterol Eicosanoids- derivatives of arachidonic acid
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3/23/2010 2 There are two major classes of steroid hormones: Sex hormones - control reproduction and secondary sex characteristics Adrenocorticoid hormones control many biochemical processes in the body Sex hormones can be classified into three major groups: Estrogens - the female sex hormones Androgens - the male sex hormones Progestins - the pregnancy hormones Structures of Selected Sex Hormones and Synthetic Compounds
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3/23/2010 3 Adrenocorticoid hormones are produced by the adrenal glands - small organs located on top of each kidney 28 different hormones have been isolated from the adrenal cortex Two types of adrenocorticoid hormones: Mineralocorticoids - control the balance of Na and K ions in cells Glucocorticoids - control glucose metabolism and counteract inflammation
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3/23/2010 4 A biological wax: a monoester of a long-chain fatty acid and a long-chain alcohol. The fatty acids found in biological waxes: Generally are saturated fatty acids Contain 14 to 36 carbon atoms. The alcohols found in biological waxes:
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This note was uploaded on 05/05/2010 for the course CHM 1031 taught by Professor Gow during the Spring '09 term at University of Florida.

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Lecture3_23 - 3/23/2010 Chapter 19 A hormone is a...

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