Biology 9700 · Cambridge International AS & A Level
Paper 3: Advanced Practical Skills
2 hours · 40 marks · 23% of the AS Level
- Duration
- 2 hours
- Marks
- 40
- Practice here
- 90
What is on this paper
- Practical work and structured questions
- Questions are based on the experimental skills in the Practical assessment section of the syllabus.
- Externally assessed
How it is weighted
- 23% of the AS Level
- 11.5% of the A Level
Which papers you sit
AS Level candidates take Papers 1, 2 and 3. A Level candidates take all five papers.
Assessment details are taken from the official Cambridge Biology 9700 syllabus for 2025-2027. Read the syllabus ↗
Practise the topics on Paper 3
All Biology topics →90 original questions, each with a full worked solution. Free to read, no account needed.
Cell Structure
Use light and electron microscopes, calculate magnification and actual size, and distinguish resolution from…
Biological Molecules
Carry out biochemical tests for carbohydrates, proteins and lipids; relate the structures of monosaccharides…
Enzymes
Explain enzyme action in terms of the active site, enzyme–substrate complex, activation energy and specificity…
Cell Membranes and Transport
Describe the fluid mosaic model and the roles of phospholipids, cholesterol, proteins and glycoproteins, including…
The Mitotic Cell Cycle
Describe chromosome structure and the stages of the mitotic cell cycle (interphase, mitosis and cytokinesis); explain…
Nucleic Acids and Protein Synthesis
Describe the structure of nucleotides, DNA and RNA, complementary base pairing and semi-conservative replication…
Transport in Mammals
Describe the mammalian double circulation and relate the structures of arteries, veins and capillaries to their…
Infectious Disease
Name the pathogens that cause cholera, malaria, tuberculosis and HIV/AIDS and explain how each is transmitted and…
Immunity
Describe phagocytosis and the roles of macrophages, B-lymphocytes and T-lymphocytes in the primary and secondary…