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MOVEMENT OF MOLECULES IN AND OUT OF CELLS

NEED A HYPOTHESIS FOR EACH OF THE THREE ITEMS BELOW:

Hypothesis for the Elodea Plant Cells:

1.

2.

3.

Conclusion for each:

1. Elodea Plant Cells in
Distilled Water at 400x

Conclusion is .... ????

2. Elodea Plant Cells in
Pond Water at 400x

Conclusion is .... ????

3. Elodea Plant Cells in
Salt Water at 400x

Conclusion is .... ????

Solution Preview

When Elodea leaves are placed in distilled water, what happens? Since the cells are hypertonic to the water (the water being hypotonic), water flows from the distilled water through the cell wall and plasma membrane and into the interior of the cells. This takes place because there are more solutes inside the cell than outside. Another way to look at this is that there is a higher concentration of water outside the cells and ...

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