9700/22/O/N/21 · Biology October/November 2021 Paper 22
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 9 marks · Prokaryotic cells, Diffusion, osmosis and active transport, Organelles, Stages of mitosis
- Question 2 · 11 marks · Blood and tissue fluid, Food tests, Cell signalling
- Question 3 · 11 marks · Pathogens, Amino acids and protein structure, Genes and the genetic code
- Question 4 · 9 marks · Transpiration
- Question 5 · 16 marks · Nucleotides, ATP and RNA, Structure of the gas exchange system, Vaccination, Immune responses
- Question 6 · 4 marks · Immobilised enzymes
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.