Edexcel & Cambridge O Level Biology

1 Cells

• Cell structure and function
• Specialised cells, tissues and organs

2 Classification

• Concept and use of a classification system
• Features of organisms

3 Movement into and out of cells

• Diffusion and osmosis
• Active transport

4 Biological molecules

• Biological molecules

5 Enzymes

• Enzyme action
• Effects of temperature and pH

6 Plant nutrition

• Photosynthesis
• Leaf structure
• Mineral nutrition

7 Transport in flowering plants

• Uptake and transport of water and ions
• Transpiration and translocation

8 Human nutrition

• Diet
• Human digestive system
• Absorption and assimilation

9 Human gas exchange

• Human gas exchange

10 Respiration

• Respiration
• Aerobic respiration
• Anaerobic respiration

11 Transport in humans

• Circulatory system
• Heart
• Blood vessels
• Blood

12 Disease and immunity

• Disease
• Disease continued
• Antibiotics
• Immunity

13 Excretion

• Excretion
• Urinary system

14 Coordination and control

• Mammalian nervous system
• Mammalian sense organs
• Mammalian hormones
• Homeostasis
• Temperature control
• Blood glucose control

15 Coordination and response in plants

• Coordination and response in plants

16 Development of organisms and continuity of life

• Nuclear division
• Asexual and sexual reproduction
• Sexual reproduction in plants
• Sexual reproduction in plants continued
• Sexual reproduction in humans

17 Inheritance

• Variation
• DNA
• Inheritance
• Selection

18 Biotechnology and genetic modification

• Biotechnology
• Genetic modification

19 Relationships of organisms with one another and with the

• environment
• Energy flow
• Nutrient cycles
• Ecosystems and biodiversity
• Effects of humans on ecosystems
• Conservation

Coming Soon