Biology 0610 · Cambridge O Level / IGCSE
Paper 1: Multiple Choice (Core)
45 minutes · 40 marks · 30%
- Duration
- 45 minutes
- Marks
- 40
- Tier
- Core
- Practice here
- 85
What is on this paper
- 40 four-option multiple-choice questions
- Externally assessed
How it is weighted
- 30%
Which papers you sit
All candidates take three components.
Core candidates take Paper 1, Paper 3 and either Paper 5 or Paper 6, and are eligible for grades C to G.
Extended candidates take Paper 2, Paper 4 and either Paper 5 or Paper 6, and are eligible for grades A* to G.
Assessment details are taken from the official Cambridge Biology 0610 syllabus for 2026-2028. Read the syllabus ↗
Practise the topics on Paper 1
All Biology topics →85 original questions, each with a full worked solution. Free to read, no account needed.
Photosynthesis and Plant Nutrition
State the word and balanced equations for photosynthesis; describe the role of chlorophyll and limiting factors…
Enzymes
Describe enzymes as biological catalysts; explain the active site and lock-and-key specificity; investigate how…
Cell Structure and Organisation
Identify and give the functions of plant, animal and bacterial cell structures; relate specialised cells to their…
Movement In and Out of Cells
Explain diffusion, osmosis and active transport across the cell membrane; describe the effects of osmosis on plant and…
Inheritance and Genetics
Define genes, alleles and chromosomes; contrast mitosis and meiosis; use Punnett squares and pedigree diagrams for…
Transport in Animals
Describe single and double circulation; identify the structures of the heart and blood vessels; relate their structure…
Human Nutrition and Digestion
Describe a balanced diet and dietary sources; identify digestive organs and their functions; explain physical and…
Respiration
Compare aerobic and anaerobic respiration with their word and balanced equations; explain the uses of energy in cells…
Transport in Plants
Compare xylem and phloem; trace water uptake by root hairs and its movement to the leaves; explain transpiration and…
Coordination and Response
Describe nervous coordination through reflex arcs and synapses; explain the eye and pupil reflex; compare nervous and…
Reproduction
Contrast asexual and sexual reproduction; describe flower structure and pollination; identify human reproductive…
Variation and Natural Selection
Distinguish continuous and discontinuous variation; describe mutation and adaptive features; explain natural…
Diseases and Immunity
Define pathogens and transmissible diseases; describe the body’s defences; explain active and passive immunity, the…
Characteristics and Classification of Living Organisms
Recall the seven life processes (MRS GREN); classify organisms into the five kingdoms; use the binomial naming system…
Ecology and Ecosystems
Describe energy flow from the Sun through food chains and webs; interpret ecological pyramids; explain the carbon and…