9700/22/F/M/21 · Biology February/March 2021 Paper 22
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 4 marks · Gas exchange tissues in micrographs, Collagen, Structure of the gas exchange system
- Question 2 · 14 marks · Genes and the genetic code, Amino acids and protein structure, Starch, glycogen and cellulose, Monomers, polymers and glucose, How enzymes work, Factors affecting rate
- Question 3 · 9 marks · Immune responses, Organelles, Resolution and magnification, Diffusion, osmosis and active transport, Fluid mosaic model
- Question 4 · 11 marks · Blood cells, Immune responses, Oxygen dissociation curve
- Question 5 · 10 marks · Stages of mitosis, The cell cycle, Xylem and phloem cells, Plan diagrams
- Question 6 · 12 marks · Pathogens, How diseases spread, Transcription and translation, Antibiotics, Vaccination
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.