communicable diseases
several types of pathogens
2)they can cause communicational diseases they can easily spared
3) both plants and animals can be infected by pathogens
1)pathogens are microorganisms that enter the body and cause diseases
4) pathogens can be bacteria or viruses or protests and fugi
bacteria are small living cells
1)bacteria are very small cells 1/100th the size of your body cell which can reproduce rapidly inside your body
2) they can make you feel ill by producing toxins that dangres your cells and tissue
viruses are not cells they're much smaller
3) ive inside cells and replicate themselves using cells machinery ro produce many copies of themselves
4) the cells will usually then burst realising all the new viruses
2)can reproduce rapidly inside the body
5) this well damage is what makes you feel ill
1) viruses are not cells they are tiny about 1/100th the size of a bacterium
protists
lots of different types they all eukaryotes
some are parasites live on inside other organisms and can cause damage
fungi
some have a body which is made up of hyphae
hyphae can grow and penetrate human skin and the surface of plants causing diseases
some are single celled
the hyphae can produce spores which can be spread to others plants and animals.
spared in different ways
air
direct contact
water
some pathogens can be picked up by drinking or bathing in dirty water
cholera is a bacteria infected that is spread by drinking water
some air born pathogens are carried in the air is droplets produced when you cough or sneeze
pathogens can be carried in the air and then be breathed in
Some pathogens can be picked up by touching contaminated surfaces, including the skin.
e.g athletes foot is a fungus which makes skin itch and flake off. It's most commonly spread by touching the same things as an infected person, e.g. shower floors and towels