Communicable Diseases

Question 1

salmonella

Answer 1

• fever, stomach cramps, vomiting & diarrhoea
  -eating contaminated food
  -bacteria

Question 2

gonorrhoea

Answer 2

-pain when urinating, yellow/green discharge from genitals
-std (sexual contact)
-bacteria

Question 3

measles

Answer 3

-red rash, fever can lead to pneumonia or encephalitis
-droplets from an infected sneeze or cough
-virus

Question 4

HIV

Answer 4

-flu like, attacks immune cells
-sexual contact or sharing bodily fluids (eg needles)
-virus

Question 5

tobacco mosaic virus

Answer 5

-a mosaic pattern on leaves and discolouration, leads to less photosynthesis
-plant contact
-virus

Question 6

rose black spot

Answer 6

• black or purple spots meaning photosynthesis cant be carried out
  -water or by wind
  -fungi

Question 7

malaria

Answer 7

-repeating episodes or fever, can be fatal
-vectors (mosquitoes)
-protist

Question 8

phagocytosis

Answer 8

-wbc engulfs pathogen
-enzymes destroy pathogen
-wbc does this multiple times until it dies, dead cells form puss around injury

Question 9

antibody production

Answer 9

-antibodies have specific shapes that allow them to latch on to the antigen
-this prevents movement and marks it for phagocytosis
- antibodies are specific to a particular pathogen and can be rapidly made again
-LYMPHOCYTES

Question 10

antitoxin production

Answer 10

-bind to toxins made by bacteria and prevent them from harming your cells
-some lymphocytes will then stay primed as memory cells
-can respond quickly and make more if the same pathogen is there