pathogens

?
pathogens
micro-organisms that causes disease
1 of 23
examples of pathogens
bacteria- salmonella; parasites-malaria, fungi- athletes foot; virus- HIV
2 of 23
disease
physical or mental symptoms from a micro-organism
3 of 23
features
gains entry to host; colonises tissue to host; resists defenses of host; causes damage to hosts tissues
4 of 23
Interfaces
penetrates interfaces with environment surface linking 2 systems- external to internal
5 of 23
gas exchange
influenza, TB, bronchitis; air-alveoli-invades cells
6 of 23
digestive
cholera, thyploid- food and water
7 of 23
skin
enters bloodstream
8 of 23
toxins
harmful molecules released in to body
9 of 23
example of toxin
bacterium that causes tetanus, produces toxins that blocks function of nerve cells
10 of 23
cell damage
rupture- release nutrients- break down nutrients-replicate-burst cell
11 of 23
mucous
difficult to penetrate as has a sticky barrier
12 of 23
enzymes
break down pathogens
13 of 23
stomach acid
kills micro-organisms
14 of 23
coronary heart disease
high blood pressure damages heart and blood vessels
15 of 23
cancer
uncontrolled cell division
16 of 23
metastatis
tumour cells that spread
17 of 23
carcinogens
mutates DNA
18 of 23
genetic
lose or gain electons through errors in mitosis- changes in nucleotide sequqnece in DNA
19 of 23
risk
measure of probablity of damage; relative
20 of 23
risk factors
smoking, diet, obesity, sunlight
21 of 23
correlation
change in one variable is reflected by a change in variable two
22 of 23
causation
one factor affects and causes another- repetition, method, bias, sample size
23 of 23

Other cards in this set

Card 2

Front

bacteria- salmonella; parasites-malaria, fungi- athletes foot; virus- HIV

Back

examples of pathogens

Card 3

Front

physical or mental symptoms from a micro-organism

Back

Preview of the back of card 3

Card 4

Front

gains entry to host; colonises tissue to host; resists defenses of host; causes damage to hosts tissues

Back

Preview of the back of card 4

Card 5

Front

penetrates interfaces with environment surface linking 2 systems- external to internal

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Health, illness and disease resources »