Curriculum
Igcse Biology
1. Characteristics and Classification of Living Organisms
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1.1 Characteristics of living organisms
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1.1 Characterisation - Assignment: extra practice
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1.2 Concept and uses of classification systems
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1.2 Binomial Name — Past papers
24 questionsPreview
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1.2 Dna in Classification — Past papers
9 questionsPreview
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1.2 Binomial Name - Assignment: extra practice
10 questionsPreview
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1.3 Features of organisms
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Characteristics, Classification & Features of Organisms - Check yourself
15 questionsPreview
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1.4 Dicotyledons and monocotyledons
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1.4 Dicot and Monocot — Past papers
1 questionsPreview
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1.5 The five kingdoms
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1.5 Kingdoms — Past papers
16 questionsPreview
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1.5 Kingdoms - Assignment: extra practice
9 questionsPreview
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1.6 Dichotomous keys
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1.6 Dichotomous Key — Past papers
7 questionsPreview
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Unit 1 - Assignment: Characteristics and classification of living organisms
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1.6 Dichotomous keys — Supplementary practice (6 questions)
6 questionsPreview
2. Organisation of the Organism
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2. Organisation of the Organism
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2.1 Cell structure
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2.1 Animal and Plant Cells — Past papers
21 questionsPreview
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2.1 Specialisation — Past papers
10 questionsPreview
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2.1 Animal and Plant Cells - Assignment: extra practice
10 questionsPreview
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2.1 Specialisation - Assignment: extra practice
10 questionsPreview
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2.2 Size of specimens
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2.2 Magnification — Past papers
16 questionsPreview
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2.2 Magnification - Assignment: extra practice
10 questionsPreview
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2.3 Levels of organisation
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2.3 Level of Organisation — Past papers
10 questionsPreview
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2.3 Level of Organisation - Assignment: extra practice
10 questionsPreview
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Levels of organisation — Check yourself (2 questions)
2 questionsPreview
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Unit 2 - Assignment: Organisation of the organism
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2. Organisation of the Organism - Unit review (50 questions)
23 questionsPreview
3. Movement into and out of Cells
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3. Movement into and out of Cells
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3.1 Diffusion
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3.1 Diffusion — Past papers
10 questionsPreview
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3.1 Diffusion - Assignment: extra practice
10 questionsPreview
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3.2 Osmosis
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3.2 Osmosis — Past papers
10 questionsPreview
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3.2 Osmosis - Assignment: extra practice
10 questionsPreview
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3.3 Active transport
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3.3 Active Transport — Past papers
11 questionsPreview
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Diffusion, Osmosis & Active Transport - Check yourself
10 questionsPreview
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Unit 3 - Assignment: Movement into and out of cells
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3. Movement into and out of Cells - Unit review (40 questions)
40 questionsPreview
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3.1.8 Proteins and Active Transport
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4. Biological Molecules
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4.1 Biological molecules
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Biological Molecules - Check yourself
12 questionsPreview
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4.2 Structure of DNA
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4.2 Dna Molecule — Past papers
15 questionsPreview
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4.2 Dna Molecule - Assignment: extra practice
10 questionsPreview
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4.3 Food tests
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4.3 Food Test — Past papers
10 questionsPreview
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4.3 Food Test - Assignment: extra practice
10 questionsPreview
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Unit 4 - Assignment: Biological molecules
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4.3 Food tests — Supplementary practice (13 questions)
13 questionsPreview
5. Enzymes
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5.1 Enzymes
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5.1 Characteristics of Enzymes — Past papers
30 questionsPreview
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5.1 Characteristics of Enzymes - Assignment: extra practice
10 questionsPreview
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Enzymes - Check yourself
10 questionsPreview
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5.2 Effect of temperature and pH on enzymes
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5.2 Effect of Temperature, Ph — Past papers
10 questionsPreview
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5.2 Effect of Temperature, Ph - Assignment: extra practice
10 questionsPreview
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5.3 Investigating enzyme activity
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5.3 Investigations — Past papers
6 questionsPreview
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Unit 5 - Assignment: Enzymes
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5. Enzymes - Unit review (36 questions)
21 questionsPreview
6. Plant Nutrition
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6. Plant Nutrition
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6.1 Photosynthesis
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6.1 Photosynthesis — Past papers
27 questionsPreview
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6.1 Investigation — Past papers
9 questionsPreview
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6.1 Investigation - Assignment: extra practice
10 questionsPreview
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6.2 Leaf structure
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6.2 Leaf Structure — Past papers
1 questionsPreview
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6.3 Mineral requirements of plants
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6.3 Mineral Requirements — Past papers
12 questionsPreview
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Magnesium and chlorophyll — Check yourself (1 question)
1 questionsPreview
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Unit 6 - Assignment: Plant nutrition
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6.3 Mineral requirements of plants — Supplementary practice (10 questions)
10 questionsPreview
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6.2.4 Genetic Engineering
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6.1.3 Generating Electricity
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7. Human Nutrition
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7. Human Nutrition
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7.1 Diet
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7.1 Diet (Part 3)
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7.1 Diet — Past papers
11 questionsPreview
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7.1 Diet - Assignment: extra practice
7 questionsPreview
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7.2 Digestive system
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7.2 Digestive system (Part 2)
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7.2 Digestive system (Part 3)
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7.2 Alimentary Canal — Past papers
14 questionsPreview
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7.2 Alimentary Canal - Assignment: extra practice
10 questionsPreview
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7.3 Physical digestion
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7.3 Physical digestion (Part 2)
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7.3 Physical digestion (Part 3)
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7.3 Physical Digestion - Assignment: extra practice
10 questionsPreview
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Human Diet & Digestion - Check yourself
9 questionsPreview
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7.4 Chemical digestion
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7.4 Chemical Digestion — Past papers
10 questionsPreview
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7.4 Chemical digestion (Part 2)
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7.4 Chemical digestion (Part 3)
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7.4 Chemical Digestion - Assignment: extra practice
10 questionsPreview
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7.5 Absorption
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7.5 Absorption — Past papers
10 questionsPreview
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7.5 Absorption (Part 2)
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7.5 Absorption (Part 3)
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7.5 Absorption - Assignment: extra practice
9 questionsPreview
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Unit 7 - Assignment: Human nutrition
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7. Human Nutrition - Unit review (50 questions)
36 questionsPreview
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7.1.10 Digestion of Starch
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7.1.11 Digestion of Protein
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7.1.14 Adaptations of the Small Intestine
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8. Transport in Plants
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8. Transport in Plants
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2.3 Transport in Plants
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6.3 Transport in Plants
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8.1 Xylem and phloem
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8.1 Xylem and Phloem — Past papers
11 questionsPreview
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8.1 Xylem and phloem (Part 2)
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8.2 Water uptake
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8.2 Water uptake (Part 2)
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8.2 Water, Mineral Uptake — Past papers
10 questionsPreview
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8.2 Water, Mineral Uptake - Assignment: extra practice
8 questionsPreview
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Transport in Plants - Check yourself
10 questionsPreview
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8.3 Transpiration
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8.3 Transpiration — Past papers
10 questionsPreview
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8.3 Transpiration (Part 2)
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8.4 Translocation Core
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8.4 Detecting reactions — Question Bank (Cambridge)
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8.4 Concentration and rate — Question Bank (Cambridge)
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8.4 Translocation Core (Part 2)
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8.4 Translocation - Assignment: extra practice
10 questionsPreview
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Unit 8 - Assignment: Transport in plants
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8. Transport in Plants - Unit review (42 questions)
42 questionsPreview
9. Transport in Animals
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9. Transport in Animals
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9.1 Circulatory systems
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9.1 Circulatory Systems — Past papers
10 questionsPreview
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9.1 Circulatory Systems - Assignment: extra practice
10 questionsPreview
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9.2 Heart
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9.2 Heart — Past papers
10 questionsPreview
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9.2 Heart - Assignment: extra practice
10 questionsPreview
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9.3 Blood vessels
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9.3 Measuring current — Question Bank (Cambridge)
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9.3 Electromagnets — Question Bank (Cambridge)
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9.3 Blood Vessels — Past papers
10 questionsPreview
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9.4 Blood
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9.4 Blood - Assignment: extra practice
10 questionsPreview
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Circulatory Systems, Heart & Blood Vessels - Check yourself
10 questionsPreview
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Unit 9 - Assignment: Transport in animals
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9. Transport in Animals - Unit review (50 questions)
50 questionsPreview
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9.3.1 Chemical Cells
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9.1.17 Conversion of Fibrinogen
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10. Diseases and Immunity
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10.1 Diseases and immunity
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10.1 Antibody — Past papers
10 questionsPreview
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10.1 Antibody - Assignment: extra practice
10 questionsPreview
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Diseases & Immunity - Check yourself
10 questionsPreview
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10.2 Immunity and vaccination
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10.2 Immunity And Vaccination — Past papers
11 questionsPreview
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10.2 Immunity And Vaccination - Assignment: extra practice
8 questionsPreview
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10.3 Cholera
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10.3 Cholera Disease — Past papers
10 questionsPreview
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10.3 Cholera Disease - Assignment: extra practice
10 questionsPreview
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Unit 10 - Assignment: Diseases and immunity
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10. Diseases and Immunity - Unit review (37 questions)
37 questionsPreview
11. Gas Exchange in Humans
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11.1 Gas exchange in humans
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11.1 Gas exchange in humans WITH ALVEOLI — Past papers
10 questionsPreview
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Gas Exchange in Humans - Check yourself
10 questionsPreview
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11.2 Inspired and expired air
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11.2 inspired and expired air — Past papers
9 questionsPreview
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11.3 Protection of the gas exchange system
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11.3 Protection of the gas exchange — Past papers
2 questionsPreview
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Unit 11 - Assignment: Gas exchange in humans
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11.3 Protection of the gas exchange system — Supplementary practice (2 questions)
2 questionsPreview
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11.1.8 Volume and Pressure Changes in the Lungs
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12. Respiration
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12.1 Respiration
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12.1 Respiration — Past papers
22 questionsPreview
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12.1 Respiration in cells: aerobic and anaerobic
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12.1 yeast respiration — Past papers
4 questionsPreview
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12.1 Respiration - Assignment: extra practice
10 questionsPreview
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12.2 Aerobic respiration
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12.2 Aerobic respiration, SEED GERMINATION — Past papers
22 questionsPreview
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12.2 Aerobic respiration, SEED GERMINATION - Assignment: extra practice
6 questionsPreview
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12.3 Anaerobic respiration
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12.3 Anaerobic respiration, LACTIC ACID — Past papers
10 questionsPreview
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12.3 Anaerobic respiration, LACTIC ACID - Assignment: extra practice
9 questionsPreview
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Unit 12 - Assignment: Respiration
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12. Respiration - Unit review (43 questions)
16 questionsPreview
13. Excretion in Humans
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13.1 Excretion in humans
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13.1 Extractory System — Past papers
5 questionsPreview
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Excretion in Humans - Check yourself
6 questionsPreview
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13.2 Structure of the kidney and urinary system
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13.2 Kidney Structure — Past papers
6 questionsPreview
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13.3 The nephron and the glomerulus
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13.3 Glomerulus, Nephrone — Past papers
13 questionsPreview
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13.3 Glomerulus, Nephrone - Assignment: extra practice
8 questionsPreview
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13.4 Urea and deamination
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13.4 Urea — Past papers
9 questionsPreview
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13.4 Urea - Assignment: extra practice
7 questionsPreview
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Unit 13 - Assignment: Excretion in humans
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13.4 Urea and deamination — Supplementary practice (10 questions)
10 questionsPreview
14. Coordination and Response
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14.1 Coordination and response
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14.1 Coordination and response — Past papers
3 questionsPreview
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14.1 Coordination and response (Part 5)
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14.1 reflex arc, ACTION — Past papers
7 questionsPreview
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14.1 Synapse — Past papers
10 questionsPreview
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14.1 Synapse - Assignment: extra practice
10 questionsPreview
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Coordination, Response & Homeostasis - Check yourself
6 questionsPreview
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14.2 Sense organs
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14.2 Sense organs (Part 2)
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14.2 Sense organs (Part 3)
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14.2 Sense organs (Part 4)
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14.2 Sense organs (Part 5)
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14.2 Sense organs (EYE) — Past papers
11 questionsPreview
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14.2 Sense organs (EYE) - Assignment: extra practice
10 questionsPreview
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14.3 Hormones
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14.3 Hormones — Past papers
12 questionsPreview
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14.3 Hormones (Part 2)
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14.3 Hormones (Part 3)
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14.3 Hormones (Part 4)
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14.3 Hormones (Part 5)
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14.3 Hormones - Assignment: extra practice
10 questionsPreview
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14.4 Homeostasis
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14.4 Homeostasis — Past papers
11 questionsPreview
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14.4 Homeostasis (Part 5)
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14.5 Tropic responses
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14.5 Tropic responses — Past papers
9 questionsPreview
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14.5 Tropic responses (Part 2)
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14.5 Tropic responses (Part 3)
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14.5 Tropic responses (Part 4)
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14.5 Tropic responses (Part 5)
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Unit 14 - Assignment: Coordination and response
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14. Coordination and Response - Unit review (50 questions)
40 questionsPreview
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14.1.4 The Synapse
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14.1.8 Homeostasis and Insulin
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15. Drugs
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15. Drugs
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15.1 Drugs
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15.1 Drugs — Past papers
12 questionsPreview
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15.1 Drugs - Assignment: extra practice
8 questionsPreview
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15.2 Antibiotic resistance
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15.2 Antibiotic resistance — Past papers
11 questionsPreview
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Drugs in Medicine - Check yourself
8 questionsPreview
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Unit 15 - Assignment: Drugs
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15. Drugs - Unit review (20 questions)
17 questionsPreview
16. Reproduction
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16.1 Asexual reproduction
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16.1 Asexual reproduction — Past papers
10 questionsPreview
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16.1 Asexual reproduction - Assignment: extra practice
5 questionsPreview
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16.2 Sexual reproduction
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16.2 Sexual reproduction — Past papers
6 questionsPreview
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16.2 Inheritance, Genes & Cell Division
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Inheritance, Genes & Cell Division - Check yourself
23 questionsPreview
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16.3 Sexual reproduction in plants
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6.3 Structure of Earth — Question Bank (Cambridge)
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6.3 Making rainbows — Question Bank (Cambridge)
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16.3 Sexual reproduction in plants — Past papers
10 questionsPreview
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16.3 Sexual reproduction in plants - Assignment: extra practice
7 questionsPreview
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16.4 Sexual reproduction in humans
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6.4 Changes to Earth — Question Bank (Cambridge)
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6.4 Colours of light — Question Bank (Cambridge)
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16.4 Sexual reproduction in humans — Past papers
10 questionsPreview
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16.4 Sexual reproduction in humans - Assignment: extra practice
10 questionsPreview
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16.5 Sex hormones in humans
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16.5 Sex hormones in humans — Past papers
10 questionsPreview
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16.5 Sex hormones in humans (Part 2)
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16.5 Sex hormones in humans (Part 3)
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16.5 Sex hormones in humans (Part 4)
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16.5 Sex hormones in humans - Assignment: extra practice
10 questionsPreview
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Reproduction in Plants & Humans - Check yourself
10 questionsPreview
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16.6 Sexually transmitted infections
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16.6 Sexually transmitted infections (Part 2)
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16.6 Sexually transmitted infections (Part 3)
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16.6 Sexually transmitted infections (Part 4)
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16.6 Sexually transmitted DISEASES — Past papers
6 questionsPreview
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Unit 16 - Assignment: Reproduction
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16. Reproduction - Unit review (50 questions)
50 questionsPreview
17. Inheritance
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5.2 Inheritance, Genes & Cell Division
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17.1 Chromosomes, genes and proteins
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17.1 DNA, Chromosomes, genes and ALLELES (X, Y) — Past papers
20 questionsPreview
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17.1 Protein Synthesis — Past papers
10 questionsPreview
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17.1 DNA, Chromosomes, genes and ALLELES (X, Y) - Assignment: extra practice
10 questionsPreview
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17.2 Mitosis Core
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17.2 Mitosis Core (Part 2)
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17.2 Mitosis Core (Part 3)
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17.2 MITOSIS, stem cell — Past papers
14 questionsPreview
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17.2 MITOSIS, stem cell - Assignment: extra practice
8 questionsPreview
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17.3 Meiosis Core
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17.3 Meiosis Core (Part 2)
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17.3 Meiosis Core (Part 3)
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17.3 Meiosis — Past papers
14 questionsPreview
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17.3 Meiosis - Assignment: extra practice
9 questionsPreview
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17.4 Monohybrid inheritance
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17.4 Monohybrid inheritance (Part 2)
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17.4 Monohybrid inheritance (Part 3)
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0610 - 17.4 Monohybrid inheritance - Check yourself
10 questionsPreview
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17.5 Pedigree diagrams and Punnett squares
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17.5 Pedigree and Punnett squares — Past papers
18 questionsPreview
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17.5 Pedigree and Punnett squares - Assignment: extra practice
8 questionsPreview
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17.6 Codominance
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17.6 Codominance — Past papers
9 questionsPreview
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17.6 Codominance - Assignment: extra practice
10 questionsPreview
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17.7 Sex linkage and colour blindness
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17.7 Sex Linked And Colour Blindess — Past papers
10 questionsPreview
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17.7 Sex Linked And Colour Blindess - Assignment: extra practice
10 questionsPreview
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Unit 17 - Assignment: Inheritance
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17.7 Sex linkage and colour blindness — Supplementary practice (6 questions)
6 questionsPreview
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5. Genes, Inheritance and Selection
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18. Variation and Selection
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18.1 Variation
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18.1 Continuous and discontinuous variation — Past papers
25 questionsPreview
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18.1 Mutation — Past papers
10 questionsPreview
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18.1 Continuous and discontinuous variation - Assignment: extra practice
10 questionsPreview
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18.2 Adaptive features
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18.2 Adaptive features — Past papers
14 questionsPreview
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18.2 Adaptive features (Part 2)
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18.2 Adaptive features - Assignment: extra practice
10 questionsPreview
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18.3 Selection
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18.3 Selection — Past papers
10 questionsPreview
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18.3 Selection - Assignment: extra practice
10 questionsPreview
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Variation & Natural Selection - Check yourself
6 questionsPreview
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Unit 18 - Assignment: Variation and selection
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18. Variation and Selection - Unit review (50 questions)
24 questionsPreview
19. Organisms and their Environment
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19. Organisms and Their Environment
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19. Organisms and Their Environment — Extended practice (51 questions)
51 questionsPreview
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19. Organisms and Their Environment — Mixed-topic practice (10 questions)
10 questionsPreview
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6.1 Energy & Feeding Relationships
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19.1 Energy flow
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19.1 Energy flow (Part 2)
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19.1 Energy & Feeding Relationships
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19.1 Energy flow and consumers — Past papers
15 questionsPreview
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19.1 Energy flow and consumers - Assignment: extra practice
5 questionsPreview
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19.2 Food chains and food webs
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19.2 Food chains and food webs (Part 2)
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19.2 Food chains, food webs and pyramids — Past papers
13 questionsPreview
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19.2 Food chains, food webs and pyramids - Assignment: extra practice
5 questionsPreview
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19.3 Nutrient cycles
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19.3 Nutrient cycles (Part 2)
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19.3 The carbon cycle — Past papers
11 questionsPreview
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19.3 The nitrogen cycle — Past papers
10 questionsPreview
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19.3 The nitrogen cycle - Assignment: extra practice
5 questionsPreview
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19.4 Populations
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19.4 Populations — Past papers
10 questionsPreview
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19.4 Populations (Part 2)
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19.4 Populations - Assignment: extra practice
7 questionsPreview
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Unit 19 - Assignment: Organisms and their environment
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19.4 Populations — Supplementary practice (11 questions)
11 questionsPreview
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19.1.3 Pyramids of Number and Biomass
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19.1.4 Pyramids of Energy
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20. Human Influences on Ecosystems
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20.1 Food supply
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20.1 Food supply — Past papers
10 questionsPreview
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20.1 Food supply (Part 2)
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20.1 Food supply (Part 3)
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20.2 Habitat destruction
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20.2 Habitat destruction — Past papers
15 questionsPreview
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20.2 Habitat destruction (Part 2)
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20.2 Habitat destruction (Part 3)
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20.2 Habitat destruction - Assignment: extra practice
10 questionsPreview
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20.3 Pollution
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20.3 Pollution — Past papers
17 questionsPreview
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20.3 Pollution (Part 3)
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20.3 Pollution - Assignment: extra practice
7 questionsPreview
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20.4 Conservation
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20.4 Conservation — Past papers
15 questionsPreview
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20.4 Conservation (Part 3)
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20.4 Conservation - Assignment: extra practice
9 questionsPreview
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20.5 Artificial insemination and IVF in conservation
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20.5 Artificial insemination — Past papers
7 questionsPreview
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Unit 20 - Assignment: Human influences on ecosystems
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20. Human Influences on Ecosystems - Unit review (50 questions)
10 questionsPreview
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20.1.5 Sustainability
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20.1.7 Reasons for Conservation
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21. Biotechnology and Genetic Modification
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21.1 Biotechnology and genetic modification
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Biotechnology & Genetic Modification - Check yourself
6 questionsPreview
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21.1 Genetic modification - Assignment: extra practice
12 questionsPreview
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21.2 Biotechnology
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21.2 Biotechnology — Past papers
12 questionsPreview
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21.2 Biotechnology - Assignment: extra practice
9 questionsPreview
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21.3 Genetic modification
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21.1 Genetic modification — Past papers
27 questionsPreview
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21.3 Genetic modification II — Past papers
10 questionsPreview
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21.3 Genetic modification II - Assignment: extra practice
10 questionsPreview
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Unit 21 - Assignment: Biotechnology and genetic modification
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21. Biotechnology and Genetic Modification - Unit review (45 questions)
33 questionsPreview
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21.1.1 Usefulness of Bacteria
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Quiz
19.3 The nitrogen cycle – Assignment: extra practice
Nitrogen cycle IGCSE Biology extra practice questions: free practice for IGCSE Biology. Work through these Nitrogen cycle IGCSE Biology extra practice questions and get instant feedback on every answer. If you get stuck, review the 19.3 Nutrient cycles — Notes lesson. More practice: IGCSE Biology — all units. Syllabus: Cambridge IGCSE Biology 0610 syllabus.
- Questions count: 5
- Passing grade: B+
- Time limit: 600 minutes
Nitrogen cycle IGCSE Biology extra practice questions: free practice for IGCSE Biology. Work through these Nitrogen cycle IGCSE Biology extra practice questions and get instant feedback on every answer. If you get stuck, review the 19.3 Nutrient cycles — Notes lesson. More practice: IGCSE Biology — all units. Syllabus: Cambridge IGCSE Biology 0610 syllabus.
- Questions count: 5
- Passing grade: B+
- Time limit: 600 minutes