OCR biology- B2

OCR 21st century science B2 (Keeping Healthy) quiz.

HideShow resource information
Put these microorganisms in order of size (smallest -biggest): fungus virus, bacterium
virus, bacterium, fungus
1 of 16
What is the process of ingesting microoragnisms by white blood cells?
Phagocytosis
2 of 16
How fast can bacteria reproduce?
Every 20 minutes
3 of 16
Why isn't there a vaccine against common colds?
ecause they have a high mutation rate so there ism
4 of 16
What is the immune system?
Parts of your body which fight off infections
5 of 16
What do vaccines contain?
Weak/inactive versions of the disease.
6 of 16
Does antibiotics CAUSE thrush?
False
7 of 16
What does antibiotics not kill?
Virus
8 of 16
What is the marker on a pathogen called?
Antigen
9 of 16
How do white blood cells react to a foreign microorganisms?
Starts producing antibodies to stick onto the microorganism
10 of 16
What is herd immunity?
When almost everyone in the population is vaccinated to prevent an outbreak of disease.
11 of 16
What would NOT be a feature in a reliable study?
Small sample size
12 of 16
What is NOT the right condition for bacteria to grow?
Sunlight
13 of 16
What is a coronary artery?
Blood vessel that supplies the heart cells
14 of 16
What happens in a heart attack?
Some heart muscle is starved of oxygen and dies
15 of 16
What are infections caused by?
Microorganisms
16 of 16

Other cards in this set

Card 2

Front

What is the process of ingesting microoragnisms by white blood cells?

Back

Phagocytosis

Card 3

Front

How fast can bacteria reproduce?

Back

Preview of the front of card 3

Card 4

Front

Why isn't there a vaccine against common colds?

Back

Preview of the front of card 4

Card 5

Front

What is the immune system?

Back

Preview of the front of card 5
View more cards

Comments

furuba fan

Report

Please rate and comment! Thanks! :)

Similar Biology resources:

See all Biology resources »