Biology 9700/34 May June 2016 | Cambridge AS Level Past Papers With Mark Scheme

1. Enzyme-catalyzed hydrolysis of starch to glucose; disappearance of starch tested with iodine solution and glucose detection using potassium manganate(VII).

2. Assessment of procedural risks involving sulfuric acid and potassium manganate(VII), and evaluation of temperature stability during experiments.

3. Graphical representation of the initial reaction rate of amylase against starch concentration to estimate the Michaelis-Menten constant (\\(K_m\\)).

4. Anatomical analysis of plant stem and root structures using microscopy, emphasizing vascular bundles and differences between pith and root cells.

5. Measurement of cell dimensions from photomicrographs using scale bars, and comparison of observable structural differences between stems and roots.