Topic 3 Viral, fungal and protist diseases + Flashcards
Examples of viral diseases
Measles
HIV
Tobacco mosaic virus
What are measles spread by
Droplets from an infected person
Symptoms of measles
Red rash fever
What is HIV spread by
Sexual contact or exchanging bodily fluids
What does HIV attack
Immune cells
Symptoms of HIV
FLu like symptoms that fade over time
What can stop HIV replicating in the body
antiretroviral drugs
Symptoms of tobacco mosaic virus
Leaves become discoloured
What does discoloured leaves mean
Photosynthesis can’t happen
Example of fungal diseases
Rose black spot
Symptoms of rose black spot
Purple or black spots on leaves of rose plants
Eventually turn yellow and drop off
What does rose black spot spread by
Water or the wind
How can rose black spot be treated
Fungicides and stripping the plant of affected leaves
Example of a disease caused by a protist
Malaria
How is malaria spread
Mosquitoes pick up the malaria a protist when they feed on an infected animal