Exam_1_answers_section_5_form_2

Exam_1_answers_section_5_form_2 - EXAM 1 Form 2 BIOLOGY...

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EXAM 1 – Form 2 BIOLOGY 1201 section 5 Fall 2008 Name: ____________________________ Choose the best answer for the following questions by filling in the appropriate space on your answer sheet. There are 50 questions. 1. How many electrons would be expected in the outer most shell of an atom with an atomic number of 17? a). 1 b). 3 c). 5 d). 7 e). 17 2. Oxygen has an atomic number of 8. Therefore, _______ a). The sum of the number of protons and neutrons in Oxygen must be 8. b). The number of neutrons in oxygen is 8. c). The number of protons in oxygen is 8. d). The number of electrons oxygen’s outer shell is 8. e). Answers a and d are correct 3. Which type of linkage connects glucose units in cellulose? a). beta-glycosidic linkages b). peptides bonds c). 3'-5' phosphodiester linkages d). disulfide bonds e). unsaturated linkages 4. What type of bond results from a complete transfer of electron(s) between atoms? a). hydrogen bond b). hydrophobic interaction c). nonpolar covalent bond d). polar covalent bond e). ionic bond 5. A phospholipid molecule has . a). a glycerol molecule d). two amino acids b). two sulfhydryl groups e). three fatty acids c). a deoxyribose sugar 6. Which of the groups of organic molecules below would be expected to contain sulfur? a). carbohydrates d). all of the above b). fatty acids e). none of the above c). nucleic acids 7. A nitrogenous base, a phosphate group, and a five-carbon sugar are the three components of a(an) a). fatty acid
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b). triacylglyceride c). amino acid d). carbohydrate e). nucleotide MATCHING: For questions 8 - 10 mark the letter of the functional group listed in the column below that best answers the question. AN ANSWER MAY BE USED MORE THAN ONCE . a). hydroxyl group b). amino group c). sulfhydryl group d). carboxylic acid e). carbonyl group 8 . C 9. 10. 11. Na + is an example of a(n) . a). amphipathic molecule b). cation c). anion d). zwitterion e). iconoclast 12. In which structure(s) below do all of the atoms have reasonable numbers of chemical bonds? a). structure a b). structure b c). structure c d). structure d e). none of them 13. While at the store you buy some celery. The cells in the celery stalks are _______ a). dead b). dead but they might come back to life if you planted or left it in a cabinet for a while. c). alive d). alive but metabolically inactive e). alive but in a coma 14. Hydrogen bonding between water molecules influences . a). an insect's ability to walk on water b). the ability of a tree to transfer water from the roots to the leaves c). the ability of water to store large quantities of heat O O N H H O H O N H a b c H H H H H C H H H H H Cl d H
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d). all of the above answers are correct e). none of the above answers are correct
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This note was uploaded on 08/22/2010 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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Exam_1_answers_section_5_form_2 - EXAM 1 Form 2 BIOLOGY...

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