311C F07 Exam2AD+A-1

311C F07 Exam2AD+A-1 - Name_KEY Bio 311C Exam 2A/D You must...

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Name ______ KEY _______ Bio 311C Exam 2A/D You must write your name and unique # on every page of the exam. Points will be deducted if you do not. On the scantron provided: 1. write and bubble your name, 2. write and bubble your UTeID, 3. write your unique # on the line provided, and 4. write your exam form (2A) above the longhorn. Multiple Choice. (2 points each) Choose the best response for each of the following. Record your answer on the scantron provided. Form A Form D 1 D A 2 C D 3 C A 4 D D 5 A C 6 D C 7 A D 8 C B 9 A E 10 D D 11 E A 12 B C 13 C C 14 C C 15 C C 1. Which of the following is a correct statement of the second law of thermodynamics? Every energy transfer leads to an increase in entropy. 2. Which of the following is not true of enzymes? Enzymes provide activation energy for the reaction they catalyze. 3. Modes of obtaining nutrition include all of the following except heteroautotrophy. 4. Choose the answer that best describes anabolic and catabolic pathways. Anabolic pathways build molecules, while catabolic pathways breakdown molecules. 5. Which of the following is most true regarding extracellular structures? Plasmodesmata in plant cells are similar in function to gap junctions in animal cells. 6. The selective permeability of biological membranes is dependent on which of the following? a. the type of transport proteins that are present in the membrane b. the lipid bilayer being permeable to primarily small, nonpolar molecules (a) and (b) only 7. Integrins are transmembrane proteins that interact with the extracellular matrix and the cytoskeleton. When the integrin protein is first synthesized, on which side of the ER membrane will the cytoskeleton-binding domain be found? It will be on the cytoplasmic side of the ER.
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The following question refers to the energy profile diagram shown below: 8. Which of the following represents the activation energy (E A ) of the uncatalyzed reaction A+B C+D? line c 9. The ATP made during glycolysis is generated by substrate-level phosphorylation. 10. Pertussis toxin is produced by the bacterium Bordetella pertussis that causes whooping cough. This toxin binds to the cytoplasmic domain of a G-protein-coupled receptor (GPCR) and prevents it from interacting with a G-protein. Which of the following is the most likely outcome of this process. The G-protein will remain in the inactive form and not be able to participate in signaling. 11. The following two reactions have been shown to be effectively energy coupled: ATP ADP + Pi X Y Based on this information X Y must be a non-spontaneous reaction. 12. Which of the following can best be used to distinguish a plant cell from an animal cell. Presence or absence of centrosomes. 13.
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This note was uploaded on 04/06/2008 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas.

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311C F07 Exam2AD+A-1 - Name_KEY Bio 311C Exam 2A/D You must...

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