B3 - Infection And Response

Question 1

What are communicable diseases

Answer 1

Diseases that can easily spread

Question 2

Viral diseases

Answer 2

Measles, HIV and TMV

Question 3

Fungal disease

Answer 3

Rose black spot

Question 4

Protist

Answer 4

Malaria

Question 5

Bacterial diseases

Answer 5

Salmonella
Gonorrhoea

Question 6

Ways to prevent disease

Answer 6

Being hygienic
Vaccination
Isolating infected individuals
Destroying vectors

Question 7

How can immune system can attack pathogens

Answer 7

Consuming them- white blood cells engulf foreign cells and digest them

Producing antibodies

Producing antitoxins

Question 8

Body has sophisticated defence system

Answer 8

Skin acts as a barrier to pathogens
Hairs and mucus in your nose trap particles that contain pathogens
Trachea and bronchi secrete mucus to trap pathogens
Stomach produces hydrochloride acid, kills pathogens far from mouth

Question 9

Pros of vaccination

Answer 9

Helps control communicable diseases
If everyone is vaccinated it is hard for people not vaccinated to get the disease

Question 10

Cons of vaccinations

Answer 10

Don’t give you immunity
Can have a bad reaction
Vaccines don’t always work

Question 11

Three main stages in drug testing

Answer 11

In preclinical testing- drugs tested on human cells and tissues

Next step In preclinical testing is to test drug on live animals

If drug passes test on animals it’s then tested on human volunteers in clinical trial