Edexcel A Level Biology: Topic Questions

Concise resources for the A Level Edexcel Biology course.

Topic QuestionsMark Schemes
Section 1: Biological Molecules
Carbohydrates 1Carbohydrates MS 1 
Carbohydrates 2 Carbohydrates MS 2
Carbohydrates 3 Carbohydrates MS 3
​Carbohydrates 4Carbohydrates MS 4
Lipids 1 Lipids MS 1
Lipids 2Lipids MS 2
Proteins 1 Proteins MS 1
Proteins 2 Proteins MS 2
Proteins 3 Proteins MS 3
​Proteins 4 Proteins MS 4
DNA & Protein Synthesis 1DNA & Protein Synthesis MS 1
DNA & Protein Synthesis 2DNA & Protein Synthesis MS 2
DNA & Protein Synthesis 3DNA & Protein Synthesis MS 3
DNA & Protein Synthesis 4DNA & Protein Synthesis MS 4
​DNA & Protein Synthesis 5DNA & Protein Synthesis MS 5
​DNA & Protein Synthesis 6DNA & Protein Synthesis MS 6
DNA & Protein Synthesis 7 DNA & Protein Synthesis MS 7
Enzymes 1Enzymes MS 1
Enzymes 2Enzymes MS 2
Enzymes 3Enzymes MS 3
Enzymes 4 Enzymes MS 4
Inorganic Ions 1 Inorganic Ions MS 1
Inorganic Ions 2 Inorganic Ions MS 2
Water Water MS
Section 2: Cells, Viruses & Reproduction of Living Things
Eukaryotic & Prokaryotic Cell Structure & Function 1Eukaryotic & Prokaryotic Cell Structure & Function MS 1
Eukaryotic & Prokaryotic Cell Structure & Function 2Eukaryotic & Prokaryotic Cell Structure & Function MS 2
Eukaryotic & Prokaryotic Cell Structure & Function 3 Eukaryotic & Prokaryotic Cell Structure & Function MS 3
Eukaryotic & Prokaryotic Cell Structure & Function 4Eukaryotic & Prokaryotic Cell Structure & Function MS 4
Eukaryotic & Prokaryotic Cell Structure & Function 5 Eukaryotic & Prokaryotic Cell Structure & Function MS 5
Eukaryotic & Prokaryotic Cell Structure & Function 6 Eukaryotic & Prokaryotic Cell Structure & Function MS 6
​Eukaryotic & Prokaryotic Cell Structure & Function 7 Eukaryotic & Prokaryotic Cell Structure & Function MS 7
Viruses 1Viruses MS 1
Viruses 2 Viruses MS 2
Eukaryotic Cell Cycle & Division 1  Eukaryotic Cell Cycle & Division MS 1
Eukaryotic Cell Cycle & Division 2Eukaryotic Cell Cycle & Division MS 2
Eukaryotic Cell Cycle & Division 3 Eukaryotic Cell Cycle & Division MS 3
Eukaryotic Cell Cycle & Division 4 Eukaryotic Cell Cycle & Division MS 4
Sexual Reproduction in Mammals 1 Sexual Reproduction in Mammals MS 1
Sexual Reproduction in Mammals 2 Sexual Reproduction in Mammals MS 2
​Sexual Reproduction in Mammals 3 Sexual Reproduction in Mammals MS 3
Sexual Reproduction in Plants 1 Sexual Reproduction in Plants MS 1
Sexual Reproduction in Plants 2 Sexual Reproduction in Plants MS 2
Section 3: Classification & Biodiversity
Classification 1Classification MS 1
Classification 2Classification MS 2
Classification 3Classification MS 3
​Classification 4 Classification MS 4
Natural Selection 1Natural Selection MS 1;
Natural Selection 2Natural Selection MS 2
Natural Selection 3Natural Selection MS 3
Natural Selection 4Natural Selection MS 4
Natural Selection 5Natural Selection MS 5
Natural Selection 6 Natural Selection MS ;6
Biodiversity 1 Biodiversity MS 1
Biodiversity 2Biodiversity MS 2
Biodiversity 3 Biodiversity MS 3
Biodiversity​ 4 Biodiversity MS 4
Section 4: Exchange & Transport
Surface Area to Volume Ratio Surface Area to Volume Ratio MS
Cell Transport Mechanisms 1Cell Transport Mechanisms MS 1
Cell Transport Mechanisms 2 Cell Transport Mechanisms MS 2
Cell Transport Mechanisms 3Cell Transport Mechanisms MS 3
Cell Transport Mechanisms 4 Cell Transport Mechanisms MS 4
Gas Exchange 1Gas Exchange MS 1
Gas Exchange 2Gas Exchange MS 2
Gas Exchange 3 Gas Exchange MS 3
Circulation 1  Circulation MS 1
Circulation 2 Circulation MS 2
Circulation 3  Circulation MS 3
Circulation 4Circulation MS 4
Circulation 5  Circulation MS 5
Circulation 6Circulation MS 6
Circulation 7Circulation MS 7
Circulation 8 Circulation MS 8
Transport of gases in the blood Transport in Gases in the Blood MS
Transport in Plants 1 Transport in Plants MS 1
Transport in Plants 2 Transport in Plants MS 2
Section 5: Energy for Biological Processes
Aerobic Respiration 1Aerobic Respiration MS 1
Aerobic Respiration 2 Aerobic Respiration MS 2
Link Reaction & Krebs Cycle Link Reaction & Krebs Cycle MS
Oxidative Phosphorylation Oxidative Phosphorylation MS
Anaerobic Respiration Anaerobic Respiration MS
Photosynthesis & Photosynthesis Pigments 1Photosynthesis & Photosynthesis Pigments MS 1
Photosynthesis & Photosynthesis Pigments 2Photosynthesis & Photosynthesis Pigments MS 2 
Photosynthesis & Photosynthesis Pigments 3Photosynthesis & Photosynthesis Pigments MS 3
Photosynthesis & Photosynthesis Pigments 4 Photosynthesis & Photosynthesis Pigments MS 4
Section 6: Microbiology & Pathogens
Microbial Techniques 1Microbial Techniques MS 1
Microbial Techniques 2Microbial Techniques MS 2
Microbial Techniques 3 Microbial Techniques MS 3
Bacteria as Pathogens Bacteria as Pathogens MS
Action of Antibiotics 1Action of Antibiotics MS 1
Action of Antibiotics 2 Action of Antibiotics MS 2
Response to Infection 1 Response to Infection MS 1
Response to Infection 2Response to Infection MS 2
Response to Infection 3Response to Infection MS 3
Response to Infection 4  Response to Infection MS 4
Response to Infection 5Response to Infection MS 5
Response to Infection 6 Response to Infection MS 6
Section 7: Modern Genetics
Gene Sequencing Gene Sequencing MS
Factors affecting Gene Expression Factors affecting Gene Expression MS
Stem Cells 1Stem Cells MS 1
Stem Cells 2Stem Cells MS 2 
Stem Cells 3 Stem Cells MS 3
Gene technology 1Gene technology MS 1
Gene technology 2Gene technology MS 2
Gene technology 3 Gene technology MS 3
Section 8: Origins of Genetic Variation
Transfer of Genetic Variation 1Transfer of Genetic Variation MS 1
Transfer of Genetic Variation 2Transfer of Genetic Variation MS 2
Transfer of Genetic Variation 3  Transfer of Genetic Variation MS 3
Transfer of Genetic Variation 4 Transfer of Genetic Variation MS 4
Transfer of Genetic Variation 5Transfer of Genetic Variation MS 5
Transfer of Genetic Variation 6Transfer of Genetic Variation MS 6
Transfer of Genetic Variation 7 Transfer of Genetic Variation MS 7
Gene Pools Gene Pools MS
Section 9:Control Systems
Chemical control in mammals Chemical control in mammals MS
Chemical control in plants Chemical control in plants MS
Structure & Function of the Mammal Nervous System 1Structure & Function of the Mammal Nervous System MS 1
Structure & Function of the Mammal Nervous System 2Structure & Function of the Mammal Nervous System MS 2
Structure & Function of the Mammal Nervous System 3 Structure & Function of the Mammal Nervous System MS 3
Nervous Transmission 1 Nervous Transmission MS 1
Nervous Transmission 2Nervous Transmission MS 2
Nervous Transmission 3Nervous Transmission MS 3
Nervous Transmission 4Nervous Transmission MS 4
Nervous Transmission 5 Nervous Transmission MS 5
Effects of drugs on the nervous system Effects of drugs on the nervous system MS
Detection of Light by Mammals Detection of Light by Mammals MS
Control of Heart Rate in Mammals Control of Heart Rate in Mammals MS
Osmoregulation & Temperature Regulation 1Osmoregulation & Temperature Regulation MS 1
Osmoregulation & Temperature Regulation 2 Osmoregulation & Temperature Regulation MS 2
Section 10: Nature of Ecosystems
The nature of ecosystems The nature of ecosystems MS
Energy transfer through ecosystems 1Energy transfer through ecosystems MS 1
Energy transfer through ecosystems 2Energy transfer through ecosystems MS 2
Energy transfer through ecosystems 3Energy transfer through ecosystems MS 3
Energy transfer through ecosystems 4 Energy transfer through ecosystems MS 4
Change in ecosystems 1Change in ecosystems MS 1
Change in ecosystems ​2Change in ecosystems MS 2
Change in ecosystems 3 ​Change in ecosystems MS 3
Human effects of ecosystems 1Human effects of ecosystems MS 1
Human effects of ecosystems 2Human effects of ecosystems MS 2
Human effects of ecosystems 3Human effects of ecosystems MS 3
Human effects of ecosystems 4Human effects of ecosystems MS 4
Human effects of ecosystems 5Human effects of ecosystems MS 5
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