B5.6-8 Pathogens Flashcards
How do bacteria cause disease ? What are three examples of a bacterial disease ?
Produce toxins which can damage/ kill surrounding cells
Salmonella, gonorrhea and crown gall
What are the symptoms of Salmonella and how can it be treated ?
Symptoms: usually develop 8-72 hours after consumption, vomiting, diarrhea and fever
Treatment: vaccinations against salmonella and antibiotics
What are the symptoms of Gonorrhoea and how can it be treated ?
Symptoms: thick yellow/ green discharge from the penis of vagina aswell as pain upon urination
Treatment: antibiotics, prevention as it’s an STD via the barrier method so condom
What are some symptoms of Crown gall and what are some treatments of it ?
Symptoms: mass of unspecialised cells often at the join between the root and the shoot
Treatment: genetic modification
How do viruses cause disease? What are three example of Viruses ?
Use a host cell to replicate by inserting its DNA into the host cell
The copies burst out of the cell causing it to die
Examples
Measles
HIV
Tobacco mosaic virus
What are some symptoms of measles and how can it be treated?
Symptoms: fever and red skin rahs
Treatments: isolation of individuals And vaccination especially as a child
What are some symptoms of HIV and how can it be treated?
Symptoms: mild flu like illness
Treatment/ prevention: condoms and not sharing needles with infected individuals
What are some symptoms of Tobacco mosaic virus and how can it be treated?
Symptoms: a distinct ‘mosaic’ pattern as the virus destroys the cells
Treatment: good field hygiene, good pest control to help prevent the spread of TMV
How does Fungi cause disease ? What is an example of a disease cause by it
Feeds of proteins and sugars in tissues
Rose black spot
What are some symptoms of rose black spot and how can it be treated?
Symptoms: Purple/ balck spots the leafs
Causes plant not to flower well
Treatment: removing/ burning affected leaves and stems or chemical fungicide
