Ch 3 Carbon Atoms and Molecules Rutgers bio 101 pg 8

Ch 3 Carbon Atoms and Molecules Rutgers bio 101 pg 8 -...

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Steroids They consist of carbon atoms arranged in four attached rings; three of the rings contain six carbon atoms, and the fourth contains five. The length and structure of the side chains that extend from these rings distinguish one steroid from another. They are synthesized from isoprene units. Important steroids: cholesterol, bile salts, reproductive hormones, and cortisol. Cholesterol in animal cells is part of animal cell membranes. In plant cells, some plant
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Unformatted text preview: steroids block the intestines absorption of cholesterol. Some chemical mediators are lipids. Some chemical mediators are produced by the modification of fatty acids that have been removed from membrane phospholipids. These include prostaglandins which promote inflammation and smooth muscle contraction. Proteins They are macromolecules composed of amino acids. Most enzymes are proteins....
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Ch 3 Carbon Atoms and Molecules Rutgers bio 101 pg 8 -...

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