h phys exam I--spring 2011--answer key

h phys exam I--spring 2011--answer key - Name: Trask Zool...

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Name: 1 | Page Trask Zool 2200: Human Physiology Exam 1 1/28/11 Section I: Multiple Choice. Answer each of the following 1-point questions by choosing the BEST answer and filling in the appropriate circle on the answer sheet provided. (60 points total). 1.) The study of the functions of organ systems is: a.) embryology. b.) anatomy. c.) ultrastructure. d.) physiology. e.) functional morphology. 2.) Which of the following statements about atoms is true? a.) They always have more protons than electrons. b.) They always have more electrons than protons. c.) They are always electrically neutral. d.) They always have fewer neutrons than they have electrons. e.) They always have an unequal number of protons and electrons. f.) They always have an unequal number of protons and neutrons. 3.) Which of the following statements about ions is true? a.) They always have more protons than electrons. b.) They always have more electrons than protons. c.) They are always electrically neutral. d.) They always have fewer neutrons than they have electrons. e.) They always have an unequal number of protons and electrons. f.) They always have an unequal number of protons and neutrons. 4.) Which of these is NOT considered a subatomic particle? a.) An electron. b.) A proton. c.) A neutron. d.) An ion. e.) Each of these is considered a subatomic particle. 5.) A proton has a mass approximately equal to: a.) 1 electron. b.) 1 neutron. c.) 1 angstrom.
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2 | Page 6.) Which of the following is NOT true of ionic bonds? a.) They are quite weak. b.) They result from the donating of electrons. c.) They are common in macromolecules. d.) They are involved in the formation of NaCl from sodium and chloride. e.) They result in the release of ions when broken by polar solvents. 7.) All of the following are examples of non-covalent bonds except: a.) the bonds between water molecules (like those that are responsible for water beading up on a newly-waxed car). b.) the bond between sodium and chloride in NaCl (table salt). c.) the bonds between phospholipids in a lipid bilayer membrane. d.) the bonds between hydrogen and oxygen in a water molecule 8.) If electrons shared by two atoms are unequally attracted to one of the atoms, a(n) occurs. a.) double covalent bond. b.) ionic bond. c.) van der Waals bond. d.) polar covalent bond. e.) hydrogen bond. 9.) Elements that have full outer shells of electrons: a.) will form many compounds. b.) will normally form ions. c.) will normally form cations (positively-charged ions). d.) frequently form hydrogen bonds. e.) don’t readily bond with other atoms. 10.) The bond between hydrogen and oxygen in H 2 O is: a.) polar b.) dependent upon shared electrons c.) ionic d.) covalent e.) dependent upon donated electrons f.) both a. and b. g.) both c and e. h.) both a. and e. i.) both a. and c. j.) a, b, and d. 11.) Which of the following is NOT one of the four classes of biomolecules?
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h phys exam I--spring 2011--answer key - Name: Trask Zool...

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