Immunity part 1

Question 1

Name the two pathogens

Answer 1

Bacteria and viruses

Question 2

What are two symptoms of a cold?

Answer 2

Fever, sore throat, cough, headache, tired.

Question 3

Describe two ways that pathogens cause symptoms

Answer 3

1. They damage cells

2. They produce poison (toxin)

Question 4

If one bacteria divides in two every 20 minutes, how many will there be after 100 minutes?

Answer 4

32

Question 5

How do our bodies stop pathogens entering our body? Give three ways.

Answer 5

Tears, sweat, mucus, hairs, stomach acid.

Question 6

What word describes an illness caused by pathogens?

Answer 6

Infection