Fighting Disease

Question 1

pathogens

Answer 1

cause infectious diseases

Question 2

bacteria 2

make u ill 2

Answer 2

very small living cells that reproduce rapidly

produce toxins and damage cells

Question 3

viruses 2

Answer 3

not cells

replicate them selves by invading ur cells producing copies of them selves then burst the cell

Question 4

the skin as a defence

Answer 4

if u cut yourself pathogens can get into ur blood stream

small fragments of cells called platelets help blood clot quickly to seal wounds

Question 5

respiratory tract

Answer 5

liked lined with sticky mucut trapping pathogens stopping them from reaching the lungs

Question 6

immune system white blood cells 3 steps

Answer 6

1. engulf pathogen
2. produce antitoxins
3. provide antibodies to lock on to foreign antigens and kill the invading pathogen

Question 7

MMR

Answer 7

contains weakened versions of of measles mumps and rubella

Question 8

painkillers

Answer 8

don’t tackle cause of symptoms

Question 9

antibiotics 2

Answer 9

kill or prevent the growth of bacteria causing the problem

dont destroy viruses

Question 10

antibiotic resistance

Answer 10

bacteria can mutate and their genetic material changes

These mutations sometimes cause them to be resistant to an antibiotic

Question 11

culturing microorganisms

Answer 11

1. heat agar Jelly to kill unwanted microorganisms pour into Petri dish
2. inoculating hoops used to transfer microorganisms to culture medium
3. paper discs soaked in different types of antibiotics placed on jelly
4. antibiotic resistant bacteria will xontiue to grow around the discs but non resistant strains will die

Question 12

semmelweis

Answer 12

told doctors to wash there hands with antiseptic
cut death rate from 12-2%
s couldnt prove why it worked