disease and immune system Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

define disease

A

a condition that impairs the normal functioning of an organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

define pathogen

A

an organism that causes disease

these can include bacteria, viruses, fungi and protoctista

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

give 3 examples of bacterium diseases

A

TB
bacterial meningitis
ring rot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

give 3 examples of viruses

A

HIV
influenza
tobacco mosaic virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

give 3 examples of fungi

A

black sigatoka
ringworm
athlete’s foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

give 2 examples of protoctist

A

potato/tomato late blight
malaria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

give 3 examples of direct transmission

A

direct contact
inoculation
indigestion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

give 3 examples of indirect transmission

A

vectors
droplets
fomites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

give 3 examples of different bacteria shapes

A

rod
spherical
comma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

summarise TB

A

infect humans, deers and badgers

suppresses immune system and damages lung tissue

treated by antibiotics and vaccinations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

summarise bacterial meningitisis

A

infects the brain and spreads through the body and can cause spetisima

vaccinations and antibiotics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

summarise ring rot

A

infects potatoes and tomatoes

gram positive bacteria

damages the leaves and fruit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

summarise viruses

A

smaller than bacteria

consist of only genetic material DNA/RNA

non-living

acellular

only replicate inside host cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

summarise HIV structure

A

caspid (outer protein layer)

core (genetic material)

envelope (extra outer layer made out of lipids from host cell)

protein attachments (virus to attach to T helper cells)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

summarise HIV becoming a viral disease

A

uses attachment proteins to attach onto T helper cells

protein capsule fuses onto T cell helper membrane allowing RNA and enzyme to enter

enzyme will help to copy viral RNA into DNA

T helper cells make viral protiens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

summarise infleunza

A

infects ciliated cells in gaseous surfaces, kills cells and leads to secondary diseases/infection

elderly, children and low immunity are more at risk

16
Q

tobacco mosaic virus

A

damage to leaves (mosaic pattern), affect photosynthesis, affect growth

no cure, resistant pkant strain

17
Q

summarise malaria

A

mosquitoes (vectors) bite and take blood

reproduce sexually and asexually

infect blood cells, liver and brain

no vaccine or cure

18
Q

summarise potato blight

A

fungus like

hyphae enter plants and cause damage to leaves and fruit

no cure, resistant strain

19
Q

fungi

A

eukaryotes
mainly in plants
multicellular/ unicelullar
release enzymes which digest hosts tissue and feed of it

20
Q

summarise black sigotoka

A

infects bananas
hyphae cause damage to leaves, turn black, affect photosynthesis, affects plant growth
fungicides kill fungus
resistant strains developed

21
Q

summarise ring worm

A

white crusty surface on skin
itching and discomfort

22
Q

summarise athlete’s foot

A

humans only
ringworm
thrives in warm,damp regions
kin cracks
anti-fungal creams

23
Q

how do hot climates mkae transmission more likely

A

increased temperature more kinetic energy for chemical reactions and reproduction

24
Q

how does social factors make transmission more likely

A

fewer sewage treatemnts, poor sanitation, overcrowding, less medical help available

25
Q

give 2 examples of physical responses to pathogens that plants have

A

bark

waxy cuticle

26
Q
A