K101Ex1PracticeExam1

K101Ex1PracticeExam1 - K101 practice test for Exam 1,...

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K101 practice test for Exam 1, Chapters 1-6 and a bit of 7; Written by and Posted by Dr. Marrs Please read each question carefully and consider ALL the choices before answering. The actual exam will be 40 multiple choice questions in a format similar to this exam (with many figures, and with questions that have choices of ‘a and b’, ‘all of the above’), so this should be excellent practice for you. Keep re-taking the exam if you are not satisfied with your score (A = 90% and up, B = 80% and up, C = 70% and up, D = 60% and up F = 59% or below ). Disclaimer : The ACTUAL exam WILL! be a bit harder than this exam , but if you get an A or a B on this practice test, you are on the way to being well-prepared! 1) The acceptance of scientific discoveries, hypotheses, or theories is based on a) consensus b) authority c) evidence d) politics e) belief 2) The present system of biological classification contains three Domains of life. Which of the following does not belong to any of the three Domains? a) Bacteria b) Smallpox virus c) Baker's yeast d) Green algae e) Archaea 3) What do the four elements most abundant in life-carbon, oxygen, hydrogen, and nitrogen-have in common? a) They all have the same number of valence electrons b) Each element exists in only one isotopic form c) They are equal in electronegativity d) They are elements produced only by living cells e) They all have unpaired electrons in their valence shells. 4) A Sodium (Na) ion has 10 electrons, 11 protons, and 12 neutrons. Its atomic mass and atomic number, respectively, are a) 23 and 33 b) 23 and 11 c) 33 and 23 d) 11 and 23 e) 33 and 11. 5) How many electrons does nitrogen have in its valence shell, and how many electrons does phosphorous have in its valence shell? a) 2, 5 b) 5, 5 c) 7 , 7 d) 8 , 5 e) 14, 31 1
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6) Which of the following determines the identity of element 6 (Carbon, C)? a) The 6 electrons of Carbon b) The 6 protons in the nucleus of Carbon c) The number of neutrons in the nucleus of Carbon d) The number of valence electrons in the outer shell of Carbon e) all of the above determine the identity of Carbon 7) Water is able to form hydrogen bonds because a) oxygen has a valence of 2. b) the water molecule is shaped like a tetrahedron. c) the bonds that hold together the atoms in a water molecule are polar covalent bonds. d)
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This note was uploaded on 05/05/2010 for the course BIO 101 taught by Professor Vaughan during the Spring '10 term at IUPUI.

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K101Ex1PracticeExam1 - K101 practice test for Exam 1,...

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