Biology 9700/52 March 2021 | Cambridge AS Level Past Papers With Mark Scheme

- Golgi body, rough endoplasmic reticulum (RER), smooth endoplasmic reticulum (SER), fluid mosaic model, cellular structure, function differentiation.
- Phospholipid structure, hydrophilic head, hydrophobic tails, membrane composition, lipid bilayer.
- Golgi body identification, vesicle presence, structural features, electron micrograph analysis.
- Secretory protein packaging, Golgi vesicle transport, cellular release mechanisms, exocytosis process.
- Viral structure confirmation, pathogen identification, smallpox virus, measles virus, antibiotic limitations.
- Immunity types, vaccination success factors, smallpox eradication, active vs. passive immunity, therapeutic drug mechanisms.