Biology 9700/51 Oct Nov 2020 | Cambridge AS Level Past Papers With Mark Scheme
- Estimation of water potential in plant tissue using sucrose solutions.
- Independent and dependent variables in experimental design.
- Proportional dilution methods for preparing sucrose solutions.
- Data collection methods for assessing tissue mass change.
- Calculation of percentage change in mass and its significance.
- Comparison of methods for estimating water potential and their effectiveness.

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