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Biology 9700/42 March 2023 | Cambridge AS Level Past Papers With Mark Scheme

- Investigation of temperature effects on beetroot cell membrane permeability.
- Measurement of red pigment diffusion in distilled water.
- Temperature range: minimum 25 °C, maximum 65 °C, additional temperatures required.
- Independent variable: temperature; dependent variable: intensity of color in water.
- Validity improvement: confirmation of pigment removal from beetroot tissue.
- Error reduction strategies: color intensity assessment and temperature maintenance.
CIE AS & A Level Biology (9700) Mar 2023

Laura Bellini

Classification: Paper 4
Page count: 28
Viewed: 118
Last update: 2 months ago
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