Bio141 Past Exams Part 1 with figures

Bio141 Past Exams - Biology 141 Old Exams Part 1 Note These questions are provided to give you a way to test your knowledge These exam questions

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1 of 15 Biology 141 Old Exams Part 1 Note: These questions are provided to give you a way to test your knowledge. These exam questions are taken from previous years exams and may not represent the exact coverage or exam structure for this year. The topics included in this collection include biological chemistry, and biomolecule structure and function (nucleic acids, proteins, carbohydrates, and lipids). Many of the graphics are unfortunately lost in the transfer. The best use of these questions is for you to learn what topics you need to study. Just being able to answer these questions will not help you because you will not be asked THESE questions. However, the understanding involved in answering these questions will be tested on the real exam. Be sure that you can explain WHY an answer is correct. ANSWERS WILL NOT BE PROVIDED BY THE PROFESSOR OR THE BIOMENTORS. 1) I correctly printed and bubbled in my name and Emory ID # on the scantron sheet and short answer sheet. A) True B) False 2) How do isotopes differ from each other? A) number of protons B) number of electrons C) number of neutrons D) valence electron distribution E) ability to form ions 3) A covalent chemical bond is one in which A) electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged. B) protons or neutrons are shared by two atoms so as to satisfy the requirements of both. C) outer-shell electrons are shared by two atoms so as to satisfactorily fill the outer electron shells of both. D) outer-shell electrons of one atom are transferred to the inner electron shells of another atom. E) the inner-shell electrons of one atom are transferred to the outer shell of another atom. 4) Which of the following represents a polar covalent bond? A) H-H B) C-C C) H-O D) C-H E) O-O 5) Which of the following solutions has the greatest concentration of hydrogen ions [H+]? A) gastric juice at pH 2 B) vinegar at pH 3 C) tomato juice at pH 4 D) black coffee at pH 5 E) household bleach at pH 12 1) Which of these is reflective of the hierarchical organization of life from most to least inclusive? A) kingdom, phylum, class, order, family, genus, species B) phylum, class, order, kingdom, family, genus, species C) kingdom, order, family, phylum, class, genus, species D) genus, species, kingdom, phylum, class, order, family E) class, order, kingdom, phylum, family, genus, species
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2 of 15 2) The active site of an enzyme is the region that A) binds with the substrate. B) binds with competitive inhibitors. C) binds with allosteric inhibitors. D) both a and b. E) all of the above 3) Which of the following solutions has the lowest concentration of hydroxide ions? A) gastric juice at pH 2
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This note was uploaded on 10/17/2011 for the course BIO 141 taught by Professor Dr.cafferty during the Fall '11 term at Emory.

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Bio141 Past Exams - Biology 141 Old Exams Part 1 Note These questions are provided to give you a way to test your knowledge These exam questions

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