Year 10 - Science
Bacterial and viral diseases in humans: TB, cholera, Helicobacter and Ebola
Health and disease
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores health and disease, including communicable and non-communicable types and their interactions. It examines lifestyle impacts, disease spread, evaluates cardiovascular treatments, and highlights the importance of risk evaluation, peer review, and effective communication of results.
Lesson Summary
You will learn to describe examples of common bacterial and viral diseases in humans, how they are spread, and ways to reduce the spread.
Key Notes
- Some, but not all, bacteria are pathogens that can cause communicable diseases in humans.
- Pathogenic bacteria produce toxins that damage living tissue and cause disease.
- Cholera, TB and Helicobacter stomach ulcers as example; how they are spread, and how the spread can be reduced.
- Viruses invade cells to reproduce where they cause damage to cells.
- Ebola as an example of a viral disease; how it is spread, and how the spread can be reduced.
Vocabulary To Learn
- bacteria: single celled prokaryotes
- pathogen: a microorganism that causes disease
- communicable disease: a disease that can be spread from one organism to another
- toxin: a poison made by bacteria
- virus: an infectious agent
Common Mistakes To Avoid
- Pupils may believe that viruses are alive.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Some, but not all, bacteria are pathogens that can cause communicable diseases in humans. Pathogenic bacteria produce toxins that damage living tissue and cause disease.
2. Define this scientific word and use it in context. 'bacteria'
single celled prokaryotes. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Pupils may believe that viruses are alive. Correction: Viruses are not cells. They do not carry out many of the processes of living organisms such as replication and respiration.
More Lessons In This Unit
- Bacterial and viral diseases in humans: Salmonella and influenza Study Guide
- Bacterial and viral diseases in humans: Salmonella and measles Study Guide
- Cancer Study Guide
- Cardiovascular disease Study Guide
- Climate change and human health Study Guide
- Diseases Study Guide
- Effects of exercise on pulse rate Study Guide
- Fungal and protist diseases in humans Study Guide
- Plant diseases: Chalara ash dieback Study Guide
- Plant diseases: TMV and rose black spot Study Guide
- Plant diseases: TMV, crown gall disease and barley powdery mildew Study Guide
- Plant diseases: TMV, crown gall disease and Chalara ash dieback Study Guide
- Risk factors for non-communicable diseases Study Guide
- Sexually transmitted infections Study Guide
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