New
New
Year 10
Edexcel
Higher

Bacterial and viral diseases in humans: TB, cholera, Helicobacter and Ebola

I can describe examples of common bacterial and viral diseases in humans, how they are spread, and ways to reduce the spread.

New
New
Year 10
Edexcel
Higher

Bacterial and viral diseases in humans: TB, cholera, Helicobacter and Ebola

I can describe examples of common bacterial and viral diseases in humans, how they are spread, and ways to reduce the spread.

Lesson details

Key learning points

  1. Some, but not all, bacteria are pathogens that can cause communicable diseases in humans.
  2. Pathogenic bacteria produce toxins that damage living tissue and cause disease.
  3. Cholera, TB and Helicobacter stomach ulcers as example; how they are spread, and how the spread can be reduced.
  4. Viruses invade cells to reproduce where they cause damage to cells.
  5. Ebola as an example of a viral disease; how it is spread, and how the spread can be reduced.

Common misconception

Pupils may believe that viruses are alive.

Viruses are not cells. They do not carry out many of the processes of living organisms such as replication and respiration.

Keywords

  • 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

When teaching Ebola, stress that most outbreaks have been in African countries. The virus often affects health workers as they are constantly exposed to bodily fluids, vomit and faeces of patients.
Teacher tip

Equipment

None required.

Content guidance

  • Depiction or discussion of sensitive content
  • Depiction or discussion of violence or suffering

Supervision

Adult supervision required

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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6 Questions

Q1.
Match the type of disease to its description.
Correct Answer:communicable,Can be passed from person to person.

Can be passed from person to person.

Correct Answer:non-communicable,Cannot be spread from person.

Cannot be spread from person.

Q2.
Which diseases are non-communicable?
Correct answer: cancer
measles
COVID-19
Correct answer: heart disease
flu
Q3.
Which picture shows a bacterium?
A
B
Correct answer: C
Q4.
Match the word to its definition.
Correct Answer:pathogen,A microorganism that causes disease.

A microorganism that causes disease.

Correct Answer:virus,An infectious agent.

An infectious agent.

Correct Answer:bacteria,A single celled prokaryote.

A single celled prokaryote.

Q5.
Which of the following can be pathogens?
plants
Correct answer: viruses
Correct answer: protists
Correct answer: fungi
Q6.
Which option best defines what a vaccination is?
An injection.
A substance used to stimulate the body's immune response against disease.
Correct answer: A substance you take when you are ill.
An antibiotic that can stimulate the body's immune response against a virus.

6 Questions

Q1.
Pathogenic bacteria can produce that damage living tissue and cause disease.
Correct Answer: toxins, poisons, toxin, poison
Q2.
Which disease is caused by a virus?
cholera
Correct answer: ebola
stomach ulcer
tuberculosis (TB)
Q3.
Which disease is there not a vaccine for?
ebola
tuberculosis (TB)
cholera
Correct answer: stomach ulcer
Q4.
Match the disease to how its primary mode of transmission.
Correct Answer:ebola,Contaminated body fluids.

Contaminated body fluids.

Correct Answer:cholera,Contaminated food and water.

Contaminated food and water.

Correct Answer:tuberculosis (TB),Mucus droplets from coughing.

Mucus droplets from coughing.

Q5.
Put the steps in order to show how a virus replicates using a host cell.
An image in a quiz
1 - Virus enters the host cell.
2 - The cell replicates the virus.
3 - Virus bursts out of the cell causing damage to the host.
Q6.
What is the best way to stop the spread of TB?
hand washing
Correct answer: vaccination
staying indoors
eating a healthy diet