Biology 9700/21 Oct Nov 2017 | Cambridge AS Level Past Papers With Mark Scheme

1. Identifying mitotic stages in plant cells, comparing microscopy techniques, and highlighting mitosis roles beyond growth.

2. Analyzing blood pressure changes in pulmonary artery and right ventricle, including valve dynamics and cardiac cycle phases.

3. Structure-function relationships in antibodies and immune responses to antigens like influenza virus components.

4. Comparison of free and immobilized enzyme activity with reference to globular protein structure and Michaelis-Menten kinetics.

5. Fluid mosaic model explanation, membrane roles, and organelle magnification calculations using transmission electron micrographs.

6. Structural adaptations in xylem vessels, functional contrasts between phloem sap and blood transport, and mitochondria abundance in root hair cells for active transport.urce.