Sciences Co-ordinated 0654/22 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Photosynthesis & Plant Responses | Role of auxin in plant growth and tropisms, chlorophyll function in energy transfer, conditions for bacterial enzyme activity.

2. Human Physiology & Blood Circulation | Components of blood and their functions, effects of exercise on respiration and breathing rate, processes in the oviduct.

3. Genetics & Inheritance | Interpretation of a pedigree diagram, dominant vs. recessive conditions, definitions of trophic levels in a food chain.

4. Chemical Reactions & Atomic Structure | Ionic bonding in potassium iodide, definition of relative atomic mass, electrolysis of copper(II) sulfate, characteristics of endothermic reactions.

5. Physics & Energy Transfer | Evaporation and temperature effects, conduction and convection in heat transfer, potential energy calculations, weight variation on different planets.

6. Electricity & Radioactivity | Circuit analysis with resistance and voltage, power dissipation in heating elements, transformer efficiency in power transmission, identification of ionizing radiation types.