BIS002A MT1 Practice S10 Comai

BIS002A MT1 Practice S10 Comai - BIS2A Midterm 1 example,...

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Unformatted text preview: BIS2A Midterm 1 example, Comai, Spring xxxxx VERSION A Your scantron should be filled in as follows: NAME: Write your name here SUBJECT: BIS2A TEST NO.: MT1 DATE: 4/17 HOUR: Write your discussion section eg. B01, B02 ID NUMBER: Write AND Bubble in ID TEST FORM: FILL IN TEST FORM A This exam has 25 multiple choice questions, each worth 3 points, and 9 pages. Please verify that all pages are included in your copy. You have midterm 1 version: A START THE EXAM WHEN INSTRUCTED TO DO SO- 1 - Yeast maintain the concentration of sucrose (a sugar) inside their cells at a steady level, marked here by the dotted line. When cells of yeast are placed in media containing different sucrose con- centration, they transport it into the cell at the rate (sucrose/sec) indicated in the graph below. P and M define experimental ranges of sugar concentration outside the cell. 1. In the M concentration range sugar is taken up into the cell because of: a. diffusion b. unsaturated lipid chains c. formation of vesicles d. active transport e. plasmodesmata 2. In the P concentration range sugar is taken up into the cell because of: a. diffusion b. unsaturated lipid chains c. formation of vesicles d. active transport e. plasmodesmata 3. Given the properties of sucrose, the following is expected: a. sucrose will permeate through the lipid bilayer in both ranges b. a membrane protein will be involved only in range P c. a membrane protein will be involved only in range M d. membrane protein(s) will be involved in both ranges e. membrane lipid composition will change in the two ranges ________________________________ Yeast maintain the concentration of sucrose (a sugar) inside their cells at a steady level, marked here by the dotted line. When cells of yeast are placed in media containing different sucrose con- centration, they transport it into the cell at the rate (sucrose/sec) indicated in the graph below. P and M define experimental ranges of sugar concentration outside the cell....
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BIS002A MT1 Practice S10 Comai - BIS2A Midterm 1 example,...

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