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Topics assessed in either paper:
•• Cell biology and Meiosis.
•• Sexual and asexual reproduction.
•• Photosynthetic reaction and Aerobic and anaerobic respiration.
•• Metabolism.
•• How materials are cycled.
Paper 1
B1 Cell structure and Transport
B1.1 The world of the microscope p 4
B1.2 Animal and plant cells p 6
B1.3 Eukaryotic and prokaryotic cells p 8
B1.4 Specialisation in animal cells p 10
B1.5 Specialisation in plant cells 12
B1.6 Diffusion 14
B1.7 Osmosis 16
B1.8 Osmosis in plants 18
B1.9 Active transport 20
B1.10 Exchanging materials 22
Cognito Videos
B2 Cell division
B2.1 Cell division 26
B2.2 Growth and differentiation 28
B2.3 Stem cells 30
B2.4 Stem cell dilemmas 32
B3 Organisation and the digestive system
B3.1 Tissues and organs 36
B3.2 The human digestive system 38
B3.3 The chemistry of food 40
B3.4 Catalysts and enzymes 42
B3.5 Factors affecting enzyme action 44
B3.6 How the digestive system works 46
B3.7 Making digestion efficient 48
B4 Organising animals and plants
B4.1 The blood 52
B4.2 The blood vessels 54
B4.3 The heart 56
B4.4 Helping the heart 58
B4.5 Breathing and gas exchange 60
B4.6 Tissues and organs in plants 62
B4.7 Transport systems in plants 64
B4.8 Evaporation and transpiration 66
B4.9 Factors affecting transpiration 68
B5 Communicable diseases
B5.1 Health and disease 74
B5.2 Pathogens and disease 76
B5.3 Preventing infections 78
B5.4 Viral diseases 80
B5.5 Bacterial diseases 82
B5.6 Diseases caused by fungi and protists 84
B5.7 Human defence responses 86
B6 Preventing and treating disease
B6.1 Vaccination 90
B6.2 Antibiotics and painkillers 92
B6.3 Discovering drugs 94
B6.4 Developing drugs 96
B7 Non-communicable diseases
B7.1 Non-communicable diseases 100
B7.2 Cancer 102
B7.3 Smoking and the risk of disease 104
B7.4 Diet, exercise, and disease 106
B7.5 Alcohol and other carcinogens 108
B8 Photosynthesis
B8.1 Photosynthesis 112
B8.2 The rate of photosynthesis 114
B8.3 How plants use glucose 116
B8.4 Making the most of photosynthesis 118
Cognito Videos
B9 Respiration
B9.1 Aerobic respiration 122
B9.2 The response to exercise 124
B9.3 Anaerobic respiration 126
B9.4 Metabolism and the liver 128
Cognito Videos
Paper 1 Required Practicals
RP1 Microscopy
RP2 Osmosis
RP3 Food tests
RP4 Amylase
RP5 Photosynthesis
Cognito Videos
Paper 2
B10 The human nervous system
B10.1 Principles of homeostasis 134
B10.2 The structure and function of the human nervous system 136
B10.3 Reflex actions 138
Exampro
B11 Hormonal coordination
B11.1 Principles of hormonal control 142
B11.2 The control of blood glucose levels 144
B11.3 Treating diabetes 146
B11.4 The role of negative feedback 148
B11.5 Human reproduction 150
B11.6 Hormones and the menstrual cycle 152
B11.7 The artificial control of fertility 154
B11.8 Infertility treatments 156
B12 Reproduction
B12.1 Types of reproduction 162
B12.2 Cell division in sexual reproduction 164
B12.3 DNA and the genome 166
B12.4 Inheritance in action 168
B12.5 More about genetics 170
B12.6 Inherited disorders 172
B12.7 Screening for genetic disorders 174
Exampro
B13 Variation and Evolution
B13.1 Variation 178
B13.2 Evolution by natural selection 180
B13.3 Selective breeding 182
B13.4 Genetic engineering 184
B13.5 Ethics of genetic technologies 186
Exampro
B14 Genetics and evolution
B14.1 Evidence for evolution 190
B14.2 Fossils and extinction 192
B14.3 More about extinction 194
B14.4 Antibiotic resistant bacteria 196
B14.5 Classification 198
B14.6 New systems of classification 200
Exampro
B15 Adaptation Interdependence Competition
B15.1 The importance of communities 206
B15.2 Organisms in their environment 208
B15.3 Distribution and abundance 210
B15.4 Competition in animals 212
B15.5 Competition in plants 214
B15.6 Adapt and survive 216
B15.7 Adaptation in animals 218
B15.8 Adaptation in plants 220
Exampro
B16 Organising an ecosystem
B16.1 Feeding relationships 224
B16.2 Materials cycling 226
B16.3 The carbon cycle 228
Exampro
B17 Biodiversity and ecosystems
B17.1 The human population explosion 232
B17.2 Land and water pollution 234
B17.3 Air pollution 236
B17.4 Deforestation and peat destruction 238
B17.5 Global warming 240
B17.6 Maintaining biodiversity 242
Paper 2 Required Practicals
RP6 Reaction time
RP7 Distribution of organisms
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