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CORNELL BIOG 1440 - Prelim1

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BioG 1440Name:Signature:MULTIPLE CHOICEFor each of the following questions, please choose the SINGLE BEST answer and then record answers to all multiple choice and true/false questions on the scantron sheet in pencil and directly on the exam in pen.d. 16a. It determines the peak rate at which an animal can produce ATP.d. Creating more internal heat in brown fat areas of the body.c. Phosphagens, anaerobic glycolysis, aerobic catabolism with glucose and glycogen, aerobic catabolism with lipids.c. The size of the molecule.e. Both ‘b’ and ‘d’ are acceptable options.e. None of the above statements is true.Indicate whether each of the following statements is True (a) or False (b).SHORT ANSWERSWrite your answers in the space provided below, observing sentence and space limits. Think about your answer before you begin writing.lower.For full credit show your work in the space providedStuDocu is not sponsored or endorsed by any college or universitySample/practice exam 4 March 2015, questionsIntroductory Biology: Comparative Physiology (Cornell University)StuDocu is not sponsored or endorsed by any college or universitySample/practice exam 4 March 2015, questionsIntroductory Biology: Comparative Physiology (Cornell University)Downloaded by yelena radutskaya ([email protected])lOMoARcPSD|34545411Prelim 1 February 25, 2011BioG 1440Total pages in exam including cover:WATCH YOUR TIME! This is a 50 minute test.Name: Student ID #: “By signing below, I acknowledge that I am abiding by Cornell University’s Code”.Signature: PLEASE:1. WRITE YOUR NAME on all pages of the exam.2, Be sure to fill out your full name and your 7 digit cornell ID on the scantron sheetin pencil.3. Record answers to all multiple choice and true/false questions on the scantronsheet in pencil and directly on the exam in pen .4. Write legibly. If we cannot read your answer, we WILL NOT grade it.5. Use only the space provided. Answers provided outside of space provided willnot be graded.6. Do NOT use calculators or any other electronic devices.7. Write down the time your discussion section meets and circle the name of yourTA: Time Sam Dillon Nirav Patel Jonathan Fuller Katie White Sabrina GuarinoMultiple choice: True/False: (21 pts) Short answer: Page 5 (12 pts) Page 6 Page 7 Page 8 (8 pts)(4 pts)(12 pts)(4 pts)Total Score = out of 61Downloaded by yelena radutskaya ([email protected])lOMoARcPSD|3454541MULTIPLE CHOICE(3 points each)For each of the following questions, please choose the SINGLE BEST answer andthen record answers to all multiple choice and true/false questions on the scantron sheet in pencil and directly on the exam in pen .1. You are sitting beside a woodstove whose surface temperature is 327°C and you arewondering how its rate of heat loss through thermal radiation compares to that from the back of your hand, which has a surface temperature of 27°C. Knowing that 0°K= -273°C, and knowing how the rate of thermal radiation increases with surface temperature, you calculate the relative rates of heat transfer per square cm from the stove and from your hand. The rate for the hot stove is higher than that for your warm hand by a factor of?a. 2b. 4c. 8d. 16e. 642. Which of the following statements regarding maximal rate of oxygen consumption (VO2 max) is FALSE?a. It determines the peak rate at which an animal can produce ATP.b. It differs among individuals within a species as well as between species.c. It provides a means by which to predict what aerobic activities an individual canperform for more than a few minutes.d. It determines how quickly an animal can cover large distances because it determines the animal’s maximum sustained speed.e. Among Olympic athletes, it is probably lower for weight lifters than for basketball players.3. Which item below is NOT a means for reducing the loss of heat from an endothermicanimal to a cold environment?a. Vasoconstriction of arterioles leading to capillaries just under the skin.b. Having a thick layer of fat associated with the skin.c. Using a counter current system to help retain heat in the body core.d. Creating more internal heat in brown fat areas of the body.e. Fluffing up feather or hair.Downloaded by yelena radutskaya ([email protected])lOMoARcPSD|34545414. The longer the distance you run, your body will progress through the various mechanisms for producing ATP in the following order.a. Phosphagens, anaerobic glycolysis, aerobic catabolism with lipids, aerobiccatabolism with glucose and glycogen.b. Anaerobic glycolysis, phosphagens, aerobic catabolism with lipids, aerobic catabolism with glucose and glycogen.c. Phosphagens, anaerobic glycolysis, aerobic catabolism with glucose and glycogen, aerobic catabolism with lipids.d. Anaerobic glycolysis, aerobic catabolism with lipids, aerobic catabolism with glucose and glycogen, phosphagens5. Epithelial sheets are a common feature of multicellular organisms. What featuredetermines whether a molecule is transported via the paracellular path?a. The presence of microvilli on the apical surface of the epithelial sheet.b. The degree of saturation of the membrane phospholipids.c. The size of the molecule.d. The density of transporter proteins associated with the tight junctionse. Both c and d are correct.6. You are studying the role of the enzyme Cornellase in catalyzing a newly discoveredmetabolic reaction. You have isolated an unknown molecule (Y) that your data suggests influences the reaction mediated by Cornellase. Your data reveals that:Y does not directly interact with the substrates or reactants involved in the reaction.in the presence of Y, increasing the concentration of the substrate (S) results in an increase in the reaction velocity.Vmax is not affected by presence of Y.the Km of the reaction mediated by Cornellase increases in presence of Y. Given these results what best describes the role of Y in regulating the reaction?a. Y and Cornellase are isozymes.b. Y is an allosteric inhibitor of Cornellase.c. Y is an allosteric activator of Cornellase.d. Y is a second enzyme that alters the structure of Cornellase.e. Both ‘b’ and ‘d’ are acceptable options.Downloaded by yelena radutskaya ([email protected])lOMoARcPSD|34545417. The figure below represents the distribution of charged solutes (ions)


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