Biology 9700/53 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.
- Preparation of sucrose solutions through proportional dilution.
- Data collection methods for assessing water potential in red pepper fruit wall.
- Calculation of percentage change in mass for tissue analysis.
- Comparison of methods for estimating water potential and their effectiveness.

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