b6.3.11 prevention and treatment of disease Flashcards
3 ways to kill pathogens
antiseptics
antivirals
antibiotics
explain antiseptics
they kill pathogens on the surface, without harming the human tissue
explain antivirals
they are drugs that stop bacteria and viruses from infecting.
they:
- block the virus entering the host cells
- prevent the virus releasing its genetic material
- prevent the virus inserting its DNA into the host’s nucleus
explain antibiotics
drugs that kill bacteria without damaging other cells
how can you identify a type of bacteria
take a blood sample, grow bacteria on the agar plate and then attack it with different antibiotics and use whichever antibiotic works the fastest
measuring the zone of inhibition
area of a circle