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110%20Exam2%20F10%20Blue%20Key

110%20Exam2%20F10%20Blue%20Key - Biology110Fall2010...

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Exam II Biology 110 – Fall 2010 Dr. David H. Bos INSTRUCTIONS: The use of calculators, cell phones or other electronic devices is not allowed during the exam. There are 34 questions on this exam. There is only one correct answer for each question. Read each question carefully and choose the best answer. Do not fill in multiple answers, as they will be marked incorrect. Turn in only the answer sheet when you are done. You may keep the exam. Take your time, think and good luck! 1. In a repeat of the Grendel and Gorter experiment, analysis on which of the following organelles would result in a ratio of about 5:1 when comparing the surface area of the phospholipids with the surface area of the organelle? a. Nucleus b. Mitochondria c. Chloroplast d. Endoplasmic reticulum e. B & C 2. In comparing outdoor soil bacteria you take two samples, one in the summer the other in the winter. Compared to the sample collected summer, the membranes of the bacteria collected in the winter will: 3. Which mechanism of transport is likely to move several very large proteins into a cell at once? 4. Assuming that a cell is lacking aldosterone (a relatively small steroid hormone) and there is excess aldosterone in the blood stream, what transport mechanism will likely be used to move aldosterone into a cell? 1
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