Infection and Response 1

Question 1

What is a pathogen?

Answer 1

Micro-organisms that pass disease from one organism to another

Question 2

What are the four types of pathogen?

Answer 2

Viruses, bacteria, fungi and protists

Question 3

What is the life cycle of a pathogen?

Answer 3

1. They infect a host
2. They reproduce
3. They spread from their host
4. They infect another host and repeat

Question 4

How can pathogens be spread?

Answer 4

1. Airborne Particles
2. Direct contact
3. Dirty Water
4. Contaminated food
5. Vectors

Question 5

How is disease prevented?

Answer 5

1. High levels of personal hygiene
   2/ Covering your mouth/nose when you cough/sneeze
2. Cleaning and disinfecting surfaces and objects
3. Vaccination and medication
4. Avoiding contact with people who are ill

Question 6

Why are viruses not classed as alive?

Answer 6

They don’t fulfil the seven life processes

Question 7

What is a species?

Answer 7

The smallest group of classifying organisms, all of which are able to interbreed to produce fertile offspring

Question 8

What is measles?

Answer 8

Caused by a virus and can be fatal

Question 9

What are the symptoms?

Answer 9

A fever and a red skin rash