9700/23/O/N/24 · Biology October/November 2024 Paper 23
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 12 marks · Structure of the gas exchange system, Functions of the tissues, Gas exchange tissues in micrographs, Cardiac cycle
- Question 2 · 12 marks · Stem cells and tumours, Stages of mitosis, The cell cycle, Plant and animal cells
- Question 3 · 9 marks · Nucleotides, ATP and RNA, DNA replication
- Question 4 · 8 marks · Factors affecting rate, Sugars and glycosidic bonds
- Question 5 · 9 marks · Immune responses, Vaccination
- Question 6 · 10 marks · Prokaryotic cells, How diseases spread, Amino acids and protein structure, Fluid mosaic model, Nucleotides, ATP and RNA, Water potential
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.