Download Virtual Lab : Osmosis

Virtual Lab : Osmosis
Name: __________________________________________ Date: __________ Period: _________
Go to this site (http://www.glencoe.com/sites/common_assets/science/virtual_labs/LS03/LS03.html).
Follow the instructions on the website. Answer the questions on this sheet.
Questions
1. When the cell was surrounded by a hypotonic solution did water move into or out of the cell?
2. In which direction did water move through the cell membrane when the cell was surrounded by
a hyptertonic solution?
3. Compare and contrast what happens to an animal cell, a plant cell, and a paramecium cell when
added to a hypotonic, isotonic, and hypertonic solution.
4. Could Elodea and Paramecium from a freshwater lake be expected to survive if transplanted
into the ocean? Explain.
5. An effective way to kill weeds is to pour salt water on the ground around the plants. Explain why
the weeds die using the principles discovered in this virtual lab.
Red Blood
Cell net
water
movement
in/out
Hypotonic
solution
Isotonic
solution
Hypotonic
solution
Red Blood
Cell
appearance
Elodea net
water
movement
in/out
Elodea
appearance
Paramecium Paramecium
net water
appearance
movement
in/out