Biology 9700/33 May June 2017 | Cambridge AS Level Past Papers With Mark Scheme
1. Hydrolysis of starch by amylase along the digestive tract and changes in reducing sugar concentration.
2. Identification of starch and reducing sugar concentrations in samples from different digestive stages using biochemical tests.
3. Measuring and calculating the cortex length as a percentage of root diameter using an eyepiece graticule.
4. Plan diagram of root transverse section highlighting xylem and central tissue structure.
5. Graphing xylem pressure variation with height in trees and explaining water transport using adhesion and cohesion principles.

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