B5 - Viral diseases that you need to know

Question 1

what are pathogens

Answer 1

microorganisms that cause disease

Question 2

What is a virus

Answer 2

are very small particles capable of infecting every type of living organism

Question 3

What ype of pathogen is measles

Answer 3

a virus

Question 4

how is measles spread

Answer 4

airbone-inhalation of droplets from coughs and sneezes

Question 5

what are they symptoms of measles

Answer 5

fever and red skin rash

Question 6

what are the complications of measles

Answer 6

can cuase blindness
brain damage
death

Question 7

what are the treatments/prevention for measles

Answer 7

• no treatment

- person has to be isoalted

Question 8

what type of pahtogen is hiv

Answer 8

virus

Question 9

how is hiv spread

Answer 9

sexual contact and exchange of bodily fluids

Question 10

what are the symptoms of hiv

Answer 10

mid -flu

Question 11

what are the complications of hiv

Answer 11

the disease can remain hidden and develop into aids .

Question 12

what are the treatments/prevents for hiv

Answer 12

no vaccine agains tit
-use contraception
-no sharing needles
screening blood used for anitreoviral drug tranfusion ./

Question 13

what type of pathogen is tobacco mosaic virus

Answer 13

virus

Question 14

how is tobacco mosaic virus spread

Answer 14

contact between diseased plant material

Question 15

what are the symptoms of tobacco mosaic virus

Answer 15

distinctive ‘mosaic’ pattern of discoloration on the leaves .

Question 16

complicaiton of tobacco mosaic virus

Answer 16

reduction in plant growth , reduces yield of crop

-virus remains infectious in the soil for years

Question 17

what are the treatments / prevention for tobacco mosaic virus

Answer 17

no treatment
farmerss grow tmv resistant strins of many crop plant
-good field hygiene and pest control can prevent the spread of TMV .

Question 18

what type of pathogen is salmonella food posioning

Answer 18

bacteria

Question 19

how is salmonella spread

Answer 19

• eating undercooked food
• eating food in unhygienic conditions
• eating food where bacteria isn’t killed by heting

Question 20

what are the symptoms of salmonella food poisoning

Answer 20

abdominal cramps
vomiting
diarrhoea

Question 21

what are the complications of salmonella

Answer 21

-fatal for young and elderly due to dehyrdation

Question 22

treatments/preventio of salmonella

Answer 22

• poultry vaccinated agaisnt salmonella
• kee raw chicken away from cooked foods .
• wash hands and surfaces after handling raw chicken .

Question 23

what type of pthogen is gonorrhoea

Answer 23

bacteeria

Question 24

how is gonorrhoea spread

Answer 24

unportected sexual contact with an infected person

Question 25

symptoms of gonorrhoea

Answer 25

thick yellow green discharge from vagina or penis | -pain when urinating

Question 26

complications of gonorrhoea

Answer 26

- long term pelvic pain - infertility - ectopic pregancies

Question 27

what are the treatments/preventions ofr gonorrhoea

Answer 27

can be treated iwth antibiotics using contraception reducing hte number of partners

Question 28

what type of pathogen is rose black spot

Answer 28

fungus

Question 29

what are the symptoms of rose black spot

Answer 29

leaves turn yellow nd droop erly . | -black or purple spots on the leafs surface

Question 30

what are the complications of rose black spot

Answer 30

reduces the area of leaves available to photosynthesise

Question 31

what type of pathogen is malaria

Answer 31

protist

Question 32

what are they symptoms of malaria

Answer 32

recurrent episodes of fever and shaking

Question 33

what are the complications for malria

Answer 33

the liver - damages the red blood ceels - caj be fataal

Question 34

what are the treatments/preventions for malaria

Answer 34

using insciticdes to kill mosuquitoes | -travellers can take antmalrial drugs

Question 35

what are fungi

Answer 35

fungi are eukaryotic organisms , some cn cuase disease in animals and plants .

Question 36

what are protists

Answer 36

protisits are single celled eukaryotic organisms that cuase disease , if they hey ener the body of another organism

Question 37

what is lage stage HIV

Answer 37

AIDS

Question 38

What cause late stage HIV

Answer 38

If you have HIV and you are not on HIV treatment

Question 39

descrie how viruses cause cell damage

Answer 39

when they have infected a suitbale host cell , they replicate themsleves and their dna . These are assmebled into new virus particles . The host cell or cells then brst and the neabry cells are infected w the virus .

Question 40

why are aniretrovial durgs given to people who ahve hiv

Answer 40

as it stops the virus replicating in the bodoy . Allowing the immune system to repair without experiencing any further damage .

Question 41

how can the mosaic pttern of discoloration on plnt leaves reedcue plant growth

Answer 41

it infects the chloroplats - turns the colour green chlorophyll yelow reducing the ability of the plant to photosynthesise and grow properly