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p62 #17-25, p63 #1-5

p62 #17-25, p63 #1-5 - Joseph Leonard p62#17-25 p63 1-5...

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Joseph Leonard – 11/16/07 – p62 #17-25, p63 1-5 Short Answer 16. Label the parts of the nucleotide below A – Phosphate group B – Nitrogen-containing base C – Sugar (deoxyribose) 17. What are isomers? Isomers are compounds with a single chemical formula but different forms. 18. What properties do alcohols and water share? They both have the ability to form hydrogen bonds. They are also both polar molecules. 19. Compare and contrast a condensation with a hydrolysis reaction? In a condensation reaction, monomers link together to form polymers. Hydrolysis is a reversal of a condensation reaction. 20. Use a diagram to show how enzymes work. 21. How does the carboxyl end of the fatty-acid molecule differ from the hydrocarbon end of the molecule? The carboxyl end is polar and is attracted to water. The hydrocarbon end is nonpolar and hydrophobic. 22. Compare and contrast the structures of triglycerides, phospholipids, and steroids. Which type of lipid is structurally unlike the other two? Triglycerides are composed of three molecules of fatty acid joined to one molecule of the alchohol glycerol.
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