b6.3.11 prevention and treatment of disease

Question 1

3 ways to kill pathogens

Answer 1

antiseptics
antivirals
antibiotics

Question 2

explain antiseptics

Answer 2

they kill pathogens on the surface, without harming the human tissue

Question 3

explain antivirals

Answer 3

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

Question 4

explain antibiotics

Answer 4

drugs that kill bacteria without damaging other cells

Question 5

how can you identify a type of bacteria

Answer 5

take a blood sample, grow bacteria on the agar plate and then attack it with different antibiotics and use whichever antibiotic works the fastest

Question 6

measuring the zone of inhibition

Answer 6

area of a circle