1. Leaf Structure & Water Transport | Photosynthesis, Xylem Adaptations, and Nitrate Absorption – Identifying leaf structures, explaining xylem functions, and describing water movement in plants.

2. Sexually Transmitted Infections & Hormonal Control | Chlamydia, Oestrogen, and Drug Resistance – Analyzing STI spread prevention, the role of oestrogen in puberty, and bacterial resistance mechanisms.

3. Pathogens & Disease Prevention | Cholera Transmission, Dehydration, and Vaccination – Understanding bacterial structure, infection methods, dehydration effects, and immune responses to vaccination.

4. Nervous System & Reflex Actions | Reflex Arc, Pupil Response, and Synaptic Transmission – Sequencing neural pathways, identifying stimuli, and explaining one-directional nerve impulse transmission.

5. Genetics & Inheritance | Red-Green Color Blindness and Genetic Probability – Interpreting pedigree charts, constructing genetic diagrams, and calculating inheritance probabilities.

6. Microorganisms & Industrial Processes | Penicillin Production & Fermentation Control – Identifying fermenter conditions, explaining temperature regulation, and listing industrial fermentation products.