Body defences against harmful microorganisms

Question 1

what does the first line of defense do

Answer 1

tries to prevent microogranisms from getting into the body

Question 2

Name 6 parts of the first line of defence

Answer 2

eyelashes
skin
hair
tears
mucus
stomach acid

Question 3

State what an organism’s second line of defence tries to do

Answer 3

kill these invading microorganisms

Question 4

what is the bodys second line defence

Answer 4

Phagocyte and antibody production

Question 5

what is a phagocyte

Answer 5

A phagocyte is a type of white blood cell that kills microorganisms by engulfing and destroying them during a process called phagocytosis.

Question 6

«<Describe the process of phagocytosis.

Answer 6

pathogens enter body
white blood cell learn the shape of pathogens
white blood cell make antibodies to fit the shape
the antibodies attach themselfs to the pathogens
white blood cell remember the shape of the pathogens so if the pathogens enter the body again
the white blood cell will recognise the pathogens and make antibodies
and the antibodies attach there selfs them before they have a chance to make you ill