9700/21/M/J/21 · Biology May/June 2021 Paper 21
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 11 marks · Magnification calculations, Organelles, Transcription and translation, Resolution and magnification
- Question 2 · 9 marks · Water, Amino acids and protein structure
- Question 3 · 7 marks · Surface area to volume ratio, Water potential
- Question 4 · 11 marks · How enzymes work, Factors affecting rate, Vmax and Km, Carbon dioxide transport
- Question 5 · 13 marks · How diseases spread, Monoclonal antibodies, Prevention and control
- Question 6 · 9 marks · Organelles, Diffusion, osmosis and active transport
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.