9700/21/O/N/24 · Biology October/November 2024 Paper 21
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 7 marks · Prokaryotic cells, Organelles
- Question 2 · 11 marks · Double circulation, Water, Oxygen dissociation curve, Cardiac cycle
- Question 3 · 16 marks · Gas exchange tissues in micrographs, Pathogens, Antibody structure, Monoclonal antibodies, Immune responses, Diffusion, osmosis and active transport
- Question 4 · 13 marks · Sugars and glycosidic bonds, Xylem and phloem cells, Translocation, Gene mutations
- Question 5 · 9 marks · Factors affecting rate, Immobilised enzymes
- Question 6 · 4 marks · Chromosomes and telomeres, Stages of mitosis
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.