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Page 51-52 Answers and Explanation. 11/17/2009. Chart #1 (pg. 51). Chart #2 (pg. 51). #4. #1-4 pg 51. Environment. Environment. Cell. Cell. 1. Osmosis 2. Semi-permeable or Selectively permeable
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Page 51-52 Answers and Explanation 11/17/2009
#4 #1-4 pg 51 Environment Environment Cell Cell • 1. Osmosis • 2. Semi-permeable or Selectively permeable • 3. Hypertonic environment (salt water)-water would move out of the freshwater fish and cause dehydration • Animal Plant • Water will flow into both cells; Animal cell will eventually burst; plant cell has cell walls that will help keep the shape, allowing the cell to expand but not burst.
1. Euglena in Water Water Solute • Euglena- Hypertonic (more solute inside) • Environment- Hypotonic (less solute, more water) • Cell will increase in size • Contractile Vacuole- pumps out excess water so the cell will not burst. Environment Euglena Water
2. RBC .25% Salt placed in 2% Salt Solution • RBC- Hypotonic (more water in cell) • Salt Soln.- Hypertonic (more salt outside cell) • Cell will decrease in size- water will leave the cell Environment Water Out RBC Water Salt
3. RBC Approx. 0.25% Salt placed in Distilled Water • RBC- 0.25 % salt is hypertonic (more salt inside cell) • Distilled Water- hypotonic (no salt in environment) • Cell will increase in size • Water will move from High to low concentration (into the cell) Environment Water IN RBC Water Salt
4. Stalk of Celery in Salt Water • Celery- Hypotonic (less salt inside celery cells) • Salt water- hypotonic (more salt in Environment) • Celery will decrease in size (water leaves the celery (high to low concentration) • The water will leave the vacuole of the celery cell and leave the stalk limp. Dehydrated. Celery Water OUT Environment Salt Water
