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CIE O Level Biology: Topic Questions

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Concise resources for the O Level CIE Biology: course.


Topic Questions Mark Scheme
Section 1: Cell Structure & Organisation
Plant & Animal CellsPlant & Animal Cells MS
Specialised Cells, Tissues & OrgansSpecialised Cells, Tissues & Organs MS
Section 2: Diffusion & Osmosis
Diffusion & OsmosisDiffusion & Osmosis MS
Section 3: Enzymes
EnzymesEnzymes MS
Section 4: Plant Nutrition
Photosynthesis & Mineral Nutrition 1Photosynthesis & Mineral Nutrition MS1
Photosynthesis & Mineral Nutrition 2 Photosynthesis & Mineral Nutrition MS2
Leaf StructureLeaf Structure MS
Section 5: Animal Nutrition
Nutrition & Diet 1Nutrients & Diet MS 1
Nutrition & Diet 2Nutrients & Diet MS 2
Digestion & The Alimentary Canal Digestion & The Alimentary Canal MS
Section 6: Transport in Flowering Plants
Transport in Flowering Plants Transport in Flowering Plants MS
Section 7: Transport in Humans
Transport in Humans 1Transport in Humans MS 1
Transport in Humans 2Transport in Humans MS 2
​Section 8: Respiration
Aerobic RespirationAerobic Respiration MS
Anaerobic RespirationAnaerobic Respiration MS
Human gas exchangeHuman gas exchange MS
Section 9: Excretion
ExcretionExcretion MS
Section 10: Homeostasis
Homeostasis Homeostasis MS
Section 11: Coordination & Response
Nervous System, Receptors & Reflex ActionNervous System, Receptors & Reflex Action MS
The EyeThe Eye MS
Hormones Hormones MS
Section 12: Support, Movement and Locomotion
Support, Movement and LocomotionSupport, Movement and Locomotion MS
Section 13: The Use and Abuse of Drugs
The Use and Abuse of Drugs The Use and Abuse of Drugs MS
Section 14: Microorganisms and Biotechnology
Microorganisms and Biotechnology Microorganisms and Biotechnology MS
Section 15: Relationships of organisms with one another and the environment
Energy flow,Food chains & Food webs 1 Energy flow, food chains & food webs MS 1
Energy flow, Food chains & Food webs 2 Energy flow, food chains & food webs MS 2
Carbon & Nitrogen CyclesCarbon & Nitrogen Cycles MS
Parasites Parasites MS
Effects of humans on the ecosystem, pollution & conservation Effects of humans on the ecosystem, pollution & conservation MS
Section 16: Development of organisms & continuity of life
Asexual & Plant ReproductionAsexual & Plant Reproduction MS
Sexual & Human ReproductionSexual & Human Reproduction MS
Sexually Transmitted DiseasesSexually Transmitted Diseases MS
Section 17: Inheritance
Genetics, Inheritance & Selection 1Genetics, Inheritance & Selection MS 1
Genetics, Inheritance & Selection 2 Genetics, Inheritance & Selection MS 2


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