Body Systems - Immune System

Question 1

immune system

Answer 1

a system of organs and structures that protect organims against disease

Question 2

immune

Answer 2

able to fight an infection as a result of prior exposure

Question 3

vaccination

Answer 3

an injection of an inactive, or artificial, pathogen that results in the organism become immune to a certain disease

Question 4

1st line of defence

Answer 4

Barrier/shield to stop germs getting into the body
(e.g. skin, mucus, tears, earwax)

Question 5

2nd line of defence

Answer 5

non-specific/general response in an attempt to destroy the disease
(e.g. fever, inflamation, blood clotting, white blood cells)

Question 6

3rd line of defence

Answer 6

a specific response to a particular pathogen
Kills it using B-cells, T-cells, memory cells and antibodies

Question 7

antibody

Answer 7

a molecule that is produced by b-cells
binds to a specific pathogen

Question 8

B-cell

Answer 8

produces antibodies in response to pathogens

Question 9

pathogen

Answer 9

a bacterium, virus or other microorganism that can cause disease

Question 10

phagocyte

Answer 10

cell that surrounds, absorbs and destroys pathogens

Question 11

white blood cells

Answer 11

cell that destroys pathogens

Question 12

T-cell

Answer 12

cell that regognises and kills pathogens

Question 13

memory cell

Answer 13

cell produced in response to an infection
retains the memory of how to fight the pathogen

Question 14

lymphocyte

Answer 14

immune cells that are made in the bone marrow
(b-cells and t-cells)