HW 5 - ) – HW 5 – Sathasivan – (49750) 1 This...

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Unformatted text preview: ) – HW 5 – Sathasivan – (49750) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Placing a plant cell in a hypotonic solution will cause the cell to 1. not change at all. 2. shrivel. 3. swell. correct 4. divide. 5. burst. Explanation: In hypotonic solutions, there is less solute (and therefore more water) outside the cell; therefore, water will rush into the cell. Plant cells prefer this environment, and use the wa- ter to keep the stem upright and rigid. Unlike animal cells, plant cells have cell walls to pre- vent the cell from bursting. 002 10.0 points The movement of substances to regions of lower concentration is called 1. active transport. 2. diffusion. correct 3. pumping. 4. osmosis. 5. exocytosis. Explanation: Recall 003 10.0 points For each molecule of ATP consumed during active transport of sodium and potassium, 1. one K + ion is imported and three Na + ions are exported.ions are exported....
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This note was uploaded on 11/17/2010 for the course BIO 311C taught by Professor Satasivian during the Spring '08 term at University of Texas.

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HW 5 - ) – HW 5 – Sathasivan – (49750) 1 This...

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