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1. Investigating reducing sugar diffusion from amylase-starch mixture through Visking tubing using Benedict’s test for sugar concentration.

2. Preparing serial dilutions to establish reducing sugar calibration and comparing sample X for diffusion estimation.

3. Effect of temperature on enzyme activity measured by light absorbance, correlating increased reducing sugar with optimal temperatures.

4. Calculating vascular bundle depth as a percentage of leaf depth using eyepiece graticule measurements for anatomical analysis.

5. Drawing plan diagrams and comparing structural differences between leaf sections from different specimens using microscopy.

CIE AS & A Level Biology (9700) Jun 2017

Laura Bellini

Classification: Paper 3

Page count: 16

Viewed: 105

Last update: 3 months ago

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Biology 9700/35 May June 2017 | Cambridge AS Level Past Papers With Mark Scheme

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