Staying Healthy Flashcards
State the 4 types of pathogen.
1) Fungi
2) Bacteria
3) Virus
4) Protozoa
Give an example of each type of pathogen.
1) Fungi - athletes foot
2) Bacteria - cholera
3) Virus - flu
4) Protozoa - malaria
What is meant by the term infectious disease?
A disease that can be passed from one organism to another.
Give an example of a non-infectious disease.
1) Cancer
2) Inherited diseases
3) Vitamin and Mineral deficiencies
What are some of the ways our body protects infection?
1) Skin acts as a natural barrier
2) Hydrochloric acid in stomach
3) Mucus lining breathing system
4) Blood clots to prevent entry
What is a vector of disease?
An organism that carries a disease but is not affected by it.
Where in the body does malaria lay eggs?
The liver
What is Cancer?
A disease where your cells grow out of control and form tumours.
What is the normal body temperature?
37 degrees celsius.
What are the two ways that white blood cells kill pathogens?
1) Release antibodies
2) Engulf pathogen
How do white blood cells recognise pathogens?
Pathogens have antigens on their cell surface.
What is the difference between active and passive immunity?
1) Active - permanent, body makes antibodies
2) Passive - Temporary, inject with synthetic
What type of pathogen do antibiotics work on?
Bacteria
What are the four step used to test drugs?
1) Computer Model
2) Tissue testing
3) Animal testing
4) Human Trials
How does the body remember how to fight a pathogen?
T-lymphocytes remember how to make specific antibodies for a long time.
Describe how super bugs - MRSA - have risen.
People are being over prescribed antibiotics so the bacteria becomes resistant.
What is a double-blind trial?
Some patients given drug - others given placebo - both don’t know who has been given what.
