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The immune system
The immune system
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Slide 1:
Diapositive
Biologie
Middelbare school
vwo
Leerjaar 2
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The immune system
Slide 1 - Diapositive
Immune system
- works against pathogens
- things that do not belong in your body
- viruses, bacteria, fungi and parasites can cause infections
Slide 2 - Diapositive
Antibodies
- your body produces antibodies against antigens
- first infection: IgM
- following infection(s): IgG
(IgE, IgD and IgA are more associated with mucosal- and cellular immunity )
Slide 3 - Diapositive
Antibodies
How does production of antibodies work?
Slide 4 - Diapositive
Slide 5 - Diapositive
Where would a white bloodcell produce antibodies against in case of the coronavirus?
A
The RNA
B
The envelope protein
C
The spike protein
D
the membrane protein
Slide 6 - Quiz
How do antibodies work?
- first of all: an antibody attaches itself to an antigen with his binding side
- this fits perfectly
Slide 7 - Diapositive
How do antibodies work?
-other white bloodcells (macrophages) come into action to 'eat' and digest the antigen
Slide 8 - Diapositive
Difference in white bloodcells
B-Cells attack invaders outside cells
T-cells attack invaders inside cells
(T-cells are produced in the Thymus - a small organ close to the heart, as you grow the thymus gets smaller and eventually seems to dissapear)
Slide 9 - Diapositive
Slide 10 - Diapositive
Slide 11 - Diapositive
What type of white bloodcell will act against Covid-19 mainly?
A
T-cells
B
B-cells
Slide 12 - Quiz
Active immunity
-natural
Your body encounters the pathogen (eg - chicken-pox) in an infection
-artificial
You receive a vaccination
Slide 13 - Diapositive
Vaccination
What is a vaccine?
A vaccine consists of
-dead or weakened pathogens
-a part of a pathogen
Slide 14 - Diapositive
where does the word vaccination come from?
It comes from vacca, which means..
A
vacca is immune in greek
B
vacca is immune in latin
C
vacca is latin for cow
D
vacca is latin for friend
Slide 15 - Quiz
Slide 16 - Diapositive
Pox
Small-pox and cow-pox were related
The antigens were very much alike
The antibodies formed against cow-pox also worked against small-pox! (cross-resistence)
Slide 17 - Diapositive
Vaccination regime
allmost all childeren in the Netherlands receive vaccinations.
Slide 18 - Diapositive
Passive immunity
passive means that you don't do anything
So it means that your body is
NOT
producing antibodies, but receives antibodie from someone else.
It generates NO memory.
Slide 19 - Diapositive
Homework
Answer questions chapter 14 and 16
Slide 20 - Diapositive
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