Health and Disease (Immune System) - As Biology

?
  • Created by: Gracie
  • Created on: 29-05-13 22:16
What are two examples of primary response ?
Skin and mucous membranes
1 of 16
What prevents the growth of pathogens on the skin ?
A chemial barrier, it lowers PH, inhibiting the growth of pathogens
2 of 16
What is in enzymes are in mucous ?
Antimicrobial
3 of 16
What responds if the pathogen gets past the primary defences ?
Immune system
4 of 16
What is the immune system def. ?
Is the bodies reaction to a foreign antigen
5 of 16
In the first stage of ummune Response, what white blood cell engulfs the pathogen ?
phagocyte
6 of 16
What breaks down the pathogen once engulfed by the WBC ?
Lysosomes, a digestive enzyme
7 of 16
What is formed when the pathogen is engulfed ?
A phagocytic vacuole
8 of 16
What does the phagocyte pressent on its cell surface after breaking down the pathogen ?
It pressents the pathogens antigens, which activate immune system cells
9 of 16
What cell is second to be activated in immune response ?
T lymphocyte
10 of 16
What is on the surface of the T lymphocyte ?
Receptors
11 of 16
After the T lymphocyte has bonded to the complimentory antigen on the phagocyte, what does it divide and differenate into ?
Some release substances which activate B lymphocytes, Some bond to the antigens on the pathogen and kill the cell, some become memory cells
12 of 16
What are on the cell surface of a B lymphocyte ?
Antibodies
13 of 16
When antibodies bind with a antigen, what does it form ?
A antigen-antibody complex
14 of 16
How is the B lymphocyte activated ?
It binds to complimentory antigens, and the substances released by the T lymphocyte
15 of 16
What happens when the B lymphocyte is activated ?
It divides by mitosis, into plasma cells, and memory cells
16 of 16

Other cards in this set

Card 2

Front

What prevents the growth of pathogens on the skin ?

Back

A chemial barrier, it lowers PH, inhibiting the growth of pathogens

Card 3

Front

What is in enzymes are in mucous ?

Back

Preview of the front of card 3

Card 4

Front

What responds if the pathogen gets past the primary defences ?

Back

Preview of the front of card 4

Card 5

Front

What is the immune system def. ?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

Biology
See all Biology resources »See all Health, illness and disease resources »