Midterm 3 - Midterm 3-v1 postmortem User ID: bthames3...

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Midterm 3-v1 postmortem User ID: bthames3 Attempt: 1 / 5 Out of: 108 Started: December 12, 2006 10:54 Finished: December 12, 2006 11:09 Time spent: 15 min. 37 sec. Student finished 34 min. 23 sec. ahead of the 50 min. time limit. Question 1 (2 points) 1. Chaperonin protein complexes perform what function in the cell? Student response: Student Response Answer Choices a. facilitate protein synthesis through dehydration reactions b . facilitate protein synthesis through hydrolysis reactions c. assist the proper folding of a polypeptide d . control the flow of H+ ions across the plasma membrane e. aid in the denaturation of 'broken' proteins Score: 2 / 2 Question 2 (2 points) 2. Which of the following is true of glycogen? Student response: Student Response Answer Choices a. It is a polymer composed of sucrose monomers. b . It is a storage polysaccharide for energy in plant cells. c. It is a storage polysaccharide for energy in animal cells. d . It is a structural polysaccharide of plant cell walls. e. It is a structural polysaccharide of animal cell plasma membranes. Score: 2 / 2 Question 3 (2 points) 3. The secondary structure of a protein is the
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Student response: Student Response Answer Choices a. bonding together of several polypeptide chains by weak bonds. b . order in which amino acids are joined in a polypeptide chain. c. unique three-dimensional shape of the fully folded polypeptide resulting from interactions between the amino acid side- groups and their environment. d . organization of a polypeptide chain into an _ helix or _ pleated sheet. e. overall protein structure resulting from the aggregation of two or more polypeptide subunits. Score: 2 / 2 Question 4 (2 points) 4. Which of the following descriptions best fits the class of molecules known as phospholipids? Student response: Student Response Answer Choices a. a nitrogenous base and a phosphate group b . a nitrogenous base and a pentose sugar c. a glycerol, fatty acids, a phosphate group, and choline d . a phosphate group, fatty acids, and either a purine or pyrimidine e. a hexose sugar, a nitrogenous base, and either a purine or pyrimidine Score: 2 / 2 Question 5 (2 points) 5. Humans can digest starch but not cellulose because
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Student response: Student Response Answer Choices a. the monomer of starch is glucose, while the monomer of cellulose is galactose. b . humans have enzymes that can hydrolyze the beta glycosidic linkages of starch but not the alpha glycosidic linkages of cellulose. c. humans have enzymes that can hydrolyze the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose. d . the monomer of starch is glucose, while the monomer of cellulose is maltose. e. humans harbor starch-digesting bacteria in
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This note was uploaded on 04/29/2008 for the course BIO 1510 taught by Professor Unknown during the Fall '07 term at Georgia Institute of Technology.

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Midterm 3 - Midterm 3-v1 postmortem User ID: bthames3...

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