Week 2

Question 1

What is a pathogen?

Answer 1

Microorganisms that causes disease?

Question 2

What are bacteria?

Answer 2

• Reproduce rapidly

- Produce toxins that make us feel ill

Question 3

What are viruses?

Answer 3

• Not cells
• They live inside cells and replicate themselves using the cells machinery to produce many copies of themselves. The cell will usually then burst, releasing all the new viruses.
• The cell damage makes us feel ill

Question 4

What is a protist?

Answer 4

• All protists are eukaryotes and most are single celled

- Usually spread by an vector

Question 5

What are fungi?

Answer 5

• Some are single celled, others have a body made up of hyphae
• Hyphae can grow and penetrate human skin and the surface of plants causing disease

Question 6

How can pathogens be spread?

Answer 6

Air
Water
Direct contact