Midterm1Fall04_formA

Midterm1Fall04_formA - Your name Student ID # Signature...

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Your name Student ID # Signature TA's name Lecture Only Biology 5A (Section 002, 10:00 am lecture) October 22, 2004 Midterm Examination 1 You may NOT talk, pass notes, or have any books, notes, calculators, nor electronic communications devices near you during the examination. Write your name, student ID#, signature, and TA’s name (or check the box if enrolled in lecture only) on this examination copy. On your Scantron form, write your Name and ID#, and the examination form in this box: Circle the answers you choose on this examination copy so you will know which answers you chose when you get your graded examination returned. You will receive this examination copy; your Scantron will not be returned to you. When you finish, please check that your Scantron form is correctly marked and is consistent with your answers on this examination copy. For each question, choose only ONE answer that is the BEST of all the choices. When you are done, slide the Scantron form within the examination pages, so that they will stay together, and turn both in simultaneously. The academic misconduct policy is clearly stated in the Biology 5LA laboratory manual, and should be rigorously adopted. There is a zero-tolerance policy for academic misconduct. A TEST NO.
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1. Writing paper is made mostly of cellulose, which is found in plants. If one corner of a sheet of paper is applied to a puddle of water, the water will move up into the paper, against the force of gravity. What are the properties of water that allow this to occur? a. High heat of vaporization. b. The change in density as it moves from the puddle into the paper. c. The inability of water to buffer changes in pH. d. Adhesion and cohesion. e. All of these properties are important. 2. Which of the following is correct? a. The more electronegative an atom, the less it wants to attract electrons. b. The less electronegative an atom, the more electrons are in its outer shell. c. The more electronegative an atom, the more it will attract electrons. d. The less electronegative an atom, the more it will attract neutrons. e. None of the above. 3. A solution of pH=8 contains how much more OH ions than H + ions? a. 100 times as many. b. 1000 times as many. c. 10000 times as many. d. 10 –6 times as many. e. 10 –2 times as many. 4. Examine the following protein: NH 2 tyr ser phe leu – COOH Which of the following is a true statement about this molecule? a. It can form by hydrolysis of the dipeptide NH 2 – tyr – ser – COOH. b. It can be formed by condensation/dehydration of the peptides NH 2 – ser – tyr – COOH and NH 2 – phe – leu – COOH. c. It can be formed by condensation/dehydration of NH
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Midterm1Fall04_formA - Your name Student ID # Signature...

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