Biology 9700/23 May June 2021 | Cambridge AS Level Past Papers With Mark Scheme

- Golgi body, rough endoplasmic reticulum (RER), smooth endoplasmic reticulum (SER), fluid mosaic model, membrane structure, cellular functions.
- Phospholipid structure, hydrophilic head, hydrophobic tails, bilayer formation, membrane integrity.
- Golgi body identification, Golgi vesicles, structural features, electron micrograph analysis.
- Secretory protein packaging, Golgi vesicle transport, exocytosis, cellular release mechanisms.
- Viral structure confirmation, smallpox virus, measles virus, antibiotic resistance, viral treatment limitations.
- Immunity types, smallpox vaccination success, active immunity, artificial immunity, public health impact.