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Key_exam1af08_sml - BIOLOGY 2A UCD FALL 2008 EXAM 1A GERHART STUDENT NAME_KEY ID Instructions(4 points Fill in your name and student ID number on

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B IOLOGY 2 A E XAM 1 A UCD F ALL 2008 G ERHART S TUDENT N AME ___________KEY___________________________________________ ID _____________________________________________________________________ Instructions (4 points): Fill in your name and student ID number on the scantron and the first and last pages of your exam booklet . Be certain that the bubbles of the scantron are filled in with your ID number and the correct version of your exam (found at the end of the Multiple Choice questions). Mark your scantron! Mark the last page (multiformat page) in PEN (answers recorded in pencil can not be re- submitted for re-grading). Tear off the last page and turn it in separately from the scantron. B EST OF L UCK ON THE E XAM ! Scoring: Multiple choice (37 questions @ 2 points each) = 74 points + Multi-format page (22 points) + following directions (4 pts) __________________________________________________ = 100 points possible
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Choose the best answer for each question. Mark more than one answer ONLY when SPECIFICALLY told to do so in the question. 1. Emergent properties at one level of a biological hierarchy are difficult or impossible to predict using information available in the level below. Which of the following is NOT an example of this principle: A. Interactions between brain cells can result in consciousness of self as a distinct entity. B. Interactions between water molecules can result in surface tension and temperature-stabilization. C. Interactions between cars on a freeway cause areas of congestion and slowing. D. Interactions between molecules cause capture and release of energy. E. All are examples of emergent properties. 2. Fossil and chemical evidence suggest that life formed within __________ years of the formation of the Earth; in contrast, the dinosaurs have been extinct for _____ years. A. 4 billion; 10 million B. 7 million; 100 thousand C. 750 million; 65 million D. 6 thousand; 4 thousand E. 50 million; 300 million 3. In the last redox reaction of the electron transport chain, there is a large energy drop as the electrons are transferred to oxygen. This step is not coupled to any sort of work. Why might ‘wasting’ energy in this large exergonic step be favorable for the cell? A. It can’t be favorable – it’s just that no cell has yet found a way to capture this lost energy. B. The large exergonic step can ‘pull’ electrons down the electron transport chain. C. The large exergonic step can ‘push’ the synthesis of sugars. D. The large exergonic step can ‘push’ the synthesis of ATP. E. Both C and D are correct. 4. If a reaction is spontaneous, which of the following statements is true? A. The products have lower entropy (more order). B.
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This note was uploaded on 02/03/2010 for the course BIS 2A taught by Professor Grossberg during the Spring '08 term at UC Davis.

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Key_exam1af08_sml - BIOLOGY 2A UCD FALL 2008 EXAM 1A GERHART STUDENT NAME_KEY ID Instructions(4 points Fill in your name and student ID number on

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