Biology
Cambridge AS/A Level
This is the published topic structure for Cambridge Cambridge AS/A Level Biology 9700, 2025–2027. Topics map to the papers below, so a student entered for only some components never sees progress counted against papers they do not sit.
Papers in this syllabus
Every component Cambridge lists for 9700. Which ones a candidate sits depends on the route chosen.
Syllabus topics
The topics a teacher works through, in syllabus order.
1 Cell structure
The microscope in cell studies · Cells as the basic units of living organisms
2 Biological molecules
Testing for biological molecules · Carbohydrates and lipids · Proteins · Water
3 Enzymes
Mode of action of enzymes · Factors that affect enzyme action
4 Cell membranes and transport
Fluid mosaic membranes · Movement into and out of cells
5 The mitotic cell cycle
Replication and division of nuclei and cells · Chromosome behaviour in mitosis
6 Nucleic acids and protein synthesis
Structure of nucleic acids and replication of DNA · Protein synthesis
7 Transport in plants
Structure of transport tissues · Transport mechanisms
8 Transport in mammals
The circulatory system · Transport of oxygen and carbon dioxide · The heart
9 Gas exchange
The gas exchange system
10 Infectious diseases
Infectious diseases · Antibiotics
11 Immunity
The immune system · Antibodies and vaccination
12 Energy and respiration
Energy · Respiration
13 Photosynthesis
Photosynthesis as an energy transfer process · Investigation of limiting factors
14 Homeostasis
Homeostasis in mammals · Homeostasis in plants
15 Control and coordination
Control and coordination in mammals · Control and coordination in plants
16 Inheritance
Passage of information from parents to offspring · The roles of genes in determining the phenotype · Gene control
17 Selection and evolution
Variation · Natural and artificial selection · Evolution
18 Classification, biodiversity and conservation
Classification · Biodiversity · Conservation
19 Genetic technology
Principles of genetic technology · Genetic technology applied to medicine · Genetically modified organisms in agriculture
Source: Cambridge International Biology 9700 syllabus, 2025–2027. Extracted and checked against the published structure. Cambridge International is not affiliated with Fect and does not endorse it. All Cambridge courses.