Science
Why is it important to cut the two potato pieces in roughly equal size and measure their initial weight before placing them in different liquids?
Cell
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Answer
Cutting the two potato pieces to roughly equal size ensures a fair comparison, as both pieces start with a similar surface area and volume. This way, any difference observed in the result is due to the different liquids (the variable being tested) and not due to differences in the pieces themselves.
Measuring the initial weight provides a baseline reference. By comparing the initial and final weights, the change in weight (increase or decrease) can be calculated accurately, which shows whether water has moved into or out of the cells by osmosis. This makes the experiment controlled and the results reliable.
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