Neutrophils

Question 1

Neutrophils travel throughout the body and often leave the blood by

Answer 1

squeezing through capillary walls to ‘patrol’ the body tissues

Question 2

During an infection, they are released in

Answer 2

large numbers from their stores

Question 3

How long do Neutrophils live

Answer 3

they are short-lived cells

Question 4

Chemicals released by ……………, as well as chemicals released by the …………….under attack (eg. histamine), attract ……………to the site where the pathogens are located (this response to chemical stimuli is known as ………….)

FIRST STEP OF MODE OF ACTION

Answer 4

pathogens

body cells

neutrophils

chemotaxis

Question 5

Neutrophils move towards ………………..(which may be covered in ……………

SECOND STEP OF MODE OF ACTION

Answer 5

pathogens

antibodies

Question 6

The antibodies are another trigger to stimulate …………………to attack the pathogens (neutrophils have………………. on their surfaces that recognise antibody molecules and …………..to them)

THIRD STEP OF MODE OF ACTION

Answer 6

neutrophils

receptor proteins

attach

Question 7

Once attached to a pathogen, the …………………membrane of a neutrophil …………… the pathogen, ……………..it and trapping the pathogen within a ……………….

FORTH STEP OF MODE OF ACTION

THIS PART OF THE PROCESS IS ALSO CALLED

Answer 7

cell surface

extends out and around

engulfing

phagocytic vacuole

endocytosis

Question 8

pathogen

Answer 8

refers to any organism which can cause disease. There are many forms of pathogens, such as viruses, bacteria, protoctists, and fungi communicable diseases