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Quiz 3 Ch 3 Name________________________ Remote # ____________ 1. (CH2O)n is the common formula for: a. amino acids. b. Sugars (carbohydrates). c. fatty acids. d. hydrophylic molecules e. hydrophobic molecules 6. A cell membrane is primarily composed of __________. a. oils, which are liquid at room temperature b. saturated fats c. phospholipids d. steroids 2. During the process of polymerization (synthesis of biological polymers), water is a __________, and the reaction is consequently called a __________ reaction. a. reactant, dehydration b. reactant, hydrolysis c. by-product, dehydration d. product, hydrolysis 7. Nucleotides __________. a. are composed of a sugar, a salt, and a phospholipid b. are found only in nucleic acids, the molecules responsible for passing genetic information from generation to generation c. are found in nucleic acids, intracellular messenger molecules, and high-energy molecules d. Both the first and second answers above are correct. 3. Saturated fats __________. a. have no double covalent bonds b. are solid at room temperature c. contain the maximum number of hydrogen atoms possible d. Both the first and second answers above are correct. e. The first, second, and third answers above are correct. 8. All of the following are polysaccharides except __________. a. cellulose b. starch c. glycogen d. glucose 4. Phospholipids contain a "head group" that is _________ and two fatty acid "tails" that are __________. a. hydrophobic, hydrophilic b. hydrophilic, hydrophobic c. hydrolyzed, nonhydrolyzed d. hydrophilic, hydrophilic 9. All of the following are proteins except __________. a. cholesterol b. enzymes c. antibodies d. All of the above are proteins. 10. Which of the following is not found in DNA? a. adenine b. guanine c. uracil d. cytosine e. thymine 5. Protein functions in cells include __________. a. storage and defense b. catalysis of biochemical reactions c. structure and movement d. transport and defense e. all of the above 1