Chapter_5_Review_Questions_for_test

Chapter_5_Review_Questions_for_test - Chapter 5 Review...

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Chapter 5 Review questions for Biology 1. Cellulose is a _____ made of many _____. a. polypeptide . . . monomers b. carbohydrate . . . fatty acids c. polymer . . . glucose moleculesd. protein . . . amino acidse. lipid . . . triglycerides 2. In a hydrolysis reaction, _____, and in this process water is _____ . a. a polymer breaks up to form monomers . . . consumed b. a monomer breaks up to form polymers . . . produced c. monomers are assembled to produce a polymer . . . consumed d. monomers are assembled to produce a polymer . . . produced e. a polymer breaks up to form monomers . . . produced 3. The four main categories of macromolecules in a cell are a. proteins, DNA, RNA, and steroids. b. monosaccharides, lipids, polysaccharides, and proteins. c. proteins, nucleic acids, carbohydrates, and lipids. d. nucleic acids, carbohydrates, monosaccharides, and proteins. e. RNA, DNA, proteins, and carbohydrates. 4. The characteristic that all lipids have in common is that a. they are all made of fatty acids and glycerol. b. they all contain nitrogen. c. none of them is very high in energy content.d. they are all acidic when mixed with water. e. none of them dissolves in water. 5. Why does the enzyme amylase break down starch but not cellulose? a. The enzyme cannot attack cellulose because of its helical shape. b. Cellulose molecules are much too large. c. Starch is made of glucose; cellulose is made of other sugars. d. The bonds between sugars in cellulose are much stronger. e. The sugars in cellulose bond together differently than in starch. 6. In some places a protein molecule may coil or fold back on itself. This is called _____ and the coils or folds are held in place by _____. a. tertiary structure . . . hydrogen bondsb. primary structure . . . covalent bonds c. secondary structure . . . peptide bondsd. tertiary structure . . . covalent bonds e. secondary structure . . . hydrogen bonds 7. A hydrophobic amino acid R group would be found where in a protein? a. forming a peptide bond with the next amino acid in the chain b. on the outside of the folded chain, in the waterc. on the inside of the folded chain, away from water d. forming hydrogen bonds with other R groupse. only at one end of a protein chain 8. The overall three-dimensional shape of a polypeptide is called the a. double helix.b. primary structure.c. secondary structure.d. tertiary structure. e. quaternary structure.
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This document was uploaded on 06/23/2009.

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Chapter_5_Review_Questions_for_test - Chapter 5 Review...

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