Dr Alex Lathbridge guides you through the key revision topics for your GCSE Biology exam.
Sounds,·51 episodes
1. Communicable diseases
How communicable diseases - viruses, bacteria, fungi and protists - are spread.
2. Human defence against infection
How non-specific defence systems protect humans against pathogens.
3. Vaccination, antibiotics and painkillers
How vaccinations work using antibodies and lymphocytes, and the concept of herd immunity.
4. Drug discovery
How drugs are tested for their safety, their efficacy, and what the optimum dose might be.
5. Monoclonal antibodies
How monoclonal antibodies are made and their use in pregnancy tests and cancer treatment.
6. Plant disease
The physical and chemical defences that protect plants against pathogens.
1. The human digestive system
Dr Alex covers the key organs involved in digestion and their special adaptations.
2. Enzymes
Dr Alex Lathbridge breaks down the key facts about how enzymes work.
3. The human circulatory system
The structure of the heart and the main blood vessels that move blood in and out of it.
4. Non-communicable diseases
Dr Alex looks at the differences between communicable and non-communicable diseases.
5. The effect of lifestyle on non-communicable diseases
Risk factors which can increase the chances of someone developing a disease.
6. Plant tissues and organs
Dr Alex Lathbridge breaks down the key facts about how plants are organised.
1. Cell Structure
Dr Alex Lathbridge breaks down the key facts about cell structure.
2. Stem Cells
How cells differ in plants and animals and why they're really useful for scientists.
3. Specialised animal and plant cells
Dr Alex Lathbridge breaks down the key facts about specialised animal and plant cells.
4. DNA and the genome
Key facts about DNA: what it is, how it's made and how it works.
5. Protein synthesis
How proteins are made during the processes of transcription and translation.
6. Mitosis and meiosis
Dr Alex Lathbridge breaks down the key facts about cell division.
7. Diffusion, osmosis and active transport
The three ways that things move in and out of cells.
8. Photosynthesis
How plants and algae make their own food by taking energy from sunlight to make glucose.
9. Respiration
How living things break down glucose to release energy, carbon dioxide and water.
