What does this tell you about the relative tonicity

3. What does this tell you about the relative tonicity between the contents of the tubing and
the solution in the beaker?
4. What would happen if the tubing with the yellow band was placed in a beaker of distilled
water?
5. How are excess salts that accumulate in cells transferred to the blood stream so they can
be removed from the body? Explain how this process works in terms of tonicity.
6. How is this experiment similar to the way a cell membrane works in the body? How is it
different? Be specific with your response.
7. If you wanted water to flow out of the tubing piece filled with 50% solution, what would
the minimum concentration of the beaker solution need to be? Explain your answer using
scientific evidence.
1. How did the physical characteristics of the potato vary before and after the experiment?

2. What does the net change in the potato sample indicate?
3. Different types of potatoes have varying natural sugar concentrations. Explain how this
may influence the water potential of each type of potato.
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4. Based on the data from the experiment, hypothesize which potato has the highest natural
sugar concentration. Explain your reasoning.
- The sweet potato contains a higher content of natural sugar, this may influence the water
potential by taking on less water than its russet potato counterpart.
5. Did water flow in or out of plant cells (potato cells) in each of the samples examined?