5.5 Bacterial diseases Flashcards
what do antibiotics do?
kill bacteria or stop them growing and cure bacterial diseases
what is salmonella caused from
- eating undercooked food when bacteria have not been killed by heating
- food prepared in unhygienic conditions - where food is contaminated with salmonella bacteria from raw meat
symptoms of salmonella
fever, abdominal cramps, vomiting, diarrhoea caused by bacteria and toxins they secrete
in children and elderly can be fatal, mostly due to dehydration
do you take medicine for salmonella
usually medicines aren’t needed because it lasts 8-72hrs
how can you prevent salmonella
- keeping raw chicken away from food that is uncooked
- avoid washing raw chicken
- wash hands and surfaces
- cook chicken thoroughly
how is gonorrhoea spread
unprotected sexual contact with an infected person
symptoms of gonorrhoea
thick yellow or green discharge from v or p and pain on urination
what can untreated gonorrhoea lead to
long term pelvic pain
infertitlity
ectopic pregnancies
babies born can have sever eye infections - blind
how can you treat gonorrhoea
antibiotics
how can you prevent gonorrhoea
contraception - condoms
reduce number of sexual partners
Where are bacterial diseases in plants found
tropical and sub-tropical regions
Explain why antibiotics are used to treat gonorrhoea infections
- antibiotics are chemicals that kill bacteria
- gonorrhoea is a bacterial disease
What recent problems have doctors in the treatment of gonorrhoea faced
- used to be cured by penicilin
- now antibiotic resistant strains of gonorrhoea evolved so its difficult to treat
Why are crown gall bacteria useful for gentically modifying
- use of the way they naturally infect plant cells
- give new added genes
- manipulate bacteria so they carry desirable genes into cells they infect
How can the spread of salmonella be prevented
- vaccination for poultry
- keep raw chicken away from food eaten uncooked
- wash hands and surfaces after handling raw chicken
- cooking chicken thoroughly to kill bacteria
