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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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1 4 pg 51

#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
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
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
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
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