Topic 3 Infection And Response

Question 1

How do bacteria cause disease?

Answer 1

They divide rapidly by binary fission, kill cells and produce harmful toxins

Question 2

Symptoms of measles

Answer 2

Fever and red skin rash

Question 3

Symptoms of gonorrhoea

Answer 3

Pain on urinating, green/yellow discharge from penis or vagina

Question 4

What is rose black spot spread?
How can it be treated?

Answer 4

Via fungal spores by wind and water
Fungicides or destroy infected leaves

Question 5

How does the skin prevent pathogens entering the body?

Answer 5

Acts as a physical barrier
Scab formation after skin is cut
Anti microbial secretions which kill pathogens

Question 6

How do antibodies work?

Answer 6

They’re complementary to the specific antigen in the pathogen causing pathogens to clump together so they are easier to destroy

Question 7

What painkiller come from willow?

Answer 7

Aspirin

Question 8

3 factors tested when developing new drugs

Answer 8

Toxicity
Efficacy
Dose

Question 9

What are monoclonal antibodies?

Answer 9

Antibodies cloned from one parent cell
Specific to one type of antigen

Question 10

Uses of monoclonal antibodies

Answer 10

Detection of pathogens
Location of cancer cells and blood clots
Pregnancy tests
Treatment of cancer