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IGCSE Biology
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1 Cells
1.1 Plant Cells
1.2 Animal Cells
1.3 Specialised Cells
1.4 Cells, tissues and organs
2 Materials and their structure
2.1 Solids, liquids and gases
2.2 Changes of state
2.3 Explaining changes of state
2.4 The water cycle
2.5 Atoms, elements and the periodic table
2.6 Compounds and formulae
2.7 Compounds and mixtures
3 Forces and energy
3.1 Gravity, weight and mass
3.2 Formation of the solar system
3.3 Movement in space
3.4 Tides
3.5 Energy
3.6 Changes in energy
3.7 Where does energy go?
4 Grouping and identifying organisms
4.1 Characteristics of living organisms
4.2 Viruses
4.3 What is a species?
4.4 Using keys
4.5 Constructing keys
5 Properties of materials
5.1 Metals and non-metals
5.2 Comparing metals and non-metals
5.3 Metal mixtures
5.4 Using the properties of materials to separate mixtures
5.5 Acids and alkalis
5.6 Indicators and the pH scale
6 Earth Physics
6.1 Sound waves
6.2 Reflections of sound
6.3 Structure of the Earth
6.4 Changes in the Earth
6.5 Solar and lunar eclipses
7 Microorganisms in the environment
7.1 Microorganisms
7.2 Food chains and webs
7.3 Microorganisms and decay
7.4 Microorganisms in food webs
8 Changes to materials
8.1 Simple chemical reactions
8.2 Neutralisation
8.3 Investigating acids and alkalis
8.4 Detecting chemical reactions
9 Electricity
9.1 Flow of electricity
9.2 Electrical circuits
9.3 Measuring the flow of current
9.4 Conductors and insulators
9.5 Adding or removing components
1 Photosynthesis
1.1 Photosynthesis
1.2 More about photosynthesis
1.3 The carbon cycle
1.4 Climate change
4 Maintaining life
4.1 Plants and water
4.2 Transpiration
4.3 Excretion in humans
4.4 Keeping a fetus healthy
7 Genes and inheritance
7.1 Chromosomes, genes and DNA
7.2 Gametes and inheritance
7.3 Variation
7.4 Natural selection
1 Characteristics and classification of living organisms
1.1 Characteristics of living organisms
1.2 Concept and uses of classification systems
1.3 Features of organisms
2 Organisation of the organism
2.1 Cell structure
2.2 Size of specimens
3 Movement into and out of cells
3.1 Diffusion
3.2 Osmosis
3.3 Active transport
4 Biological molecules
4.1 Biological molecules
5 Enzymes
5.1 Enzymes
6 Plant nutrition
6.1 Photosynthesis
6.2 Leaf structure
7 Human nutrition
7.1 Diet
7.2 Digestive system
7.3 Physical digestion
7.4 Chemical digestion
7.5 Absorption
8 Transport in plants
8.1 Xylem and phloem
8.2 Water uptake
8.3 Transpiration
8.4 Translocation
9 Transport in animals
9.1 Circulatory systems
9.2 Heart
9.3 Blood vessels
9.4 Blood
10 Diseases and immunity
10.1 Diseases and immunity
11 Gas exchange in humans
11.1 Gas exchange in humans
12 Respiration
12.1 Respiration
12.2 Aerobic respiration
12.3 Anaerobic respiration
13 Excretion in humans
13.1 Excretion in humans
14 Coordination and response
14.1 Coordination and response
14.2 Sense organs
14.3 Hormones
14.4 Homeostasis
14.5 Tropic responses
15 Drugs
15.1 Drugs
16 Reproduction
16.1 Asexual reproduction
16.2 Sexual reproduction
16.3 Sexual reproduction in plants
16.4 Sexual reproduction in humans
16.5 Sex hormones in humans
16.6 Sexually transmitted infections
17 Inheritance
17.1 Chromosomes, genes and proteins
17.2 Mitosis
17.3 Meiosis
17.4 Monohybrid inheritance
18 Variation and selection
18.1 Variation
18.2 Adaptive features
18.3 Selection
19 Organisms and their environment
19.1 Energy flow
19.2 Food chains and food webs
19.3 Nutrient cycles
19.4 Populations
20 Human influences on ecosystems
20.1 Food supply
20.2 Habitat destruction
20.3 Pollution
20.4 Conservation
21 Biotechnology and genetic modification
21.1 Biotechnology and genetic modification
21.2 Biotechnology
21.3 Genetic modification
1 Cell structure
1.1 The microscope in cell studies
1.2 Cells as the basic units of living organisms
2 Biological molecules
2.1 Testing for biological molecules
2.2 Carbohydrates and lipids
2.3 Proteins
2.4 Water
3 Enzymes
3.1 Mode of action of enzymes
3.2 Factors that affect enzyme action
4 Cell membranes and transport
4.1 Fluid mosaic membranes
4.2 Movement into and out of cells
5 The mitotic cell cycle
5.1 Replication and division of nuclei and cells
5.2 Chromosome behaviour in mitosis
6 Nucleic acids and protein synthesis
6.1 Structure of nucleic acids and replication of DNA
6.2 Protein synthesis
7 Transport in plants
7.1 Structure of transport tissues
7.2 Transport mechanisms
8 Transport in mammals
8.1 The circulatory system
8.2 Transport of oxygen and carbon dioxide
8.3 The heart
9 Gas exchange
9.1 The gas exchange system
10 Infectious diseases
10.1 Infectious diseases
10.2 Antibiotics
11 Immunity
11.1 The immune system
11.2 Antibodies and vaccination
12 Energy and respiration
12.1 Energy
12.2 Respiration
13 Photosynthesis
13.1 Photosynthesis as an energy transfer process
13.2 Investigation of limiting factors
14 Homeostasis
14.1 Homeostasis in mammals
14.2 Homeostasis in plants
15 Control and coordination
15.1 Control and coordination in mammals
15.2 Control and coordination in plants
16 Inheritance
16.1 Passage of information from parents to offspring
16.2 The roles of genes in determining the phenotype
16.3 Gene control
17 Selection and evolution
17.1 Variation
17.2 Natural and artificial selection
17.3 Evolution
18 Classification, biodiversity and conservation
18.1 Classification
18.2 Biodiversity
18.3 Conservation
19 Genetic technology
19.1 Principles of genetic technology
19.2 Genetic technology applied to medicine
19.3 Genetically modified organisms in agriculture
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