AS BIO ISA prep.
- Created by: Kaay
- Created on: 29-01-14 21:41
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- Biology ISA Preparation
- Graph
- X-axis: Independent variable : Sucrose molarity (moldm3.
- y-axis: Dependent vairaible: % mass change
- x-axis intercept: ISOTONIC!
- below 0 - percentage mass decrease. | Above 0: percentage mass increase
- Do not extrapolate the curve of best fit- only until the range's max. and min. points
- Title: % change in potato cylinders at different blackcurrant molarities.
- Calculation
- % mass change=
- (final mass- Initial mass)/ Initial mass x 100
- % mass change=
- Control variables
- Same potato
- Remove excess water from potato after osmosis occured
- Content
- If there is a change in mass of the potato cylinder, then osmosis has occurred, to make both water concentrations reach equilibrium
- Graph
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