Biology 9700/23 May June 2018 | Cambridge AS Level Past Papers With Mark Scheme

1. Cell cycle and mitosis stages in root tip meristems, including cytokinesis and pre-cytokinesis events.

2. Adipocyte structure, triglyceride metabolism regulation, and fatty acid transport mechanisms.

3. Xerophytic leaf adaptations in Nerium oleander to minimize water loss and specialized cells for assimilate transport.

4. Oxygen transport by hemoglobin, oxygen dissociation curve interpretation, and sickle cell anemia effects on oxygen delivery.

5. Enzyme activity comparison for ficin and papain under varying temperatures, including applications in parasitic nematode digestion and immunology.

6. Prokaryotic and eukaryotic cell differences and infectious disease categorization based on causative organisms and transmission routes.