9700/22/O/N/25 · Biology October/November 2025 Paper 22
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 14 marks · Organelles, Arteries, veins and capillaries, Cell signalling, Stages of mitosis, Stem cells and tumours
- Question 2 · 12 marks · Pathogens, Prevention and control, Types of immunity, Monoclonal antibodies
- Question 3 · 13 marks · Genes and the genetic code, Transcription and translation, Gene mutations, Monomers, polymers and glucose, Measuring enzyme activity, Immobilised enzymes
- Question 4 · 7 marks · Fluid mosaic model, Prokaryotic cells, Antibiotics
- Question 5 · 5 marks · Plan diagrams, Xerophytes
- Question 6 · 9 marks · Cardiac cycle, Haemoglobin, Carbon dioxide transport
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.