Biology 9700/21 May June 2022 | Cambridge AS Level Past Papers With Mark Scheme
- Tissue identification in lung sections: A, B, D.
- Glandular function in gas exchange system health.
- Hyperventilation effects: decreased CO2 partial pressure, increased blood pH.
- B-lymphocyte activation and plasma cell formation.
- Monoclonal antibody production via hybridoma method.
- Cotransporter proteins in phloem tissue and mRNA synthesis.

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