AP Bio immune system
Texto del Guión Gráfico
- I'm hungry, this castle has tons of food in it, but the walls are stopping us from getting in!
- Human body
- Nice! We can get inside through this crack in the wall
- Cut in the skin
- Hey! I don't recognize you. You must be an invader!!
- Uh oh
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- The Pathogens try to get inside, but the walls of the castle (the skin, 1st line of defense) are stopping them
- Call in the Lymphocytes!
- I got one, but theres too many
- The Pathogens find a cut in the skin that they can use to invade the body
- After testing the pathogen, i can make antibodies to bind to their antigens so we can fight them!
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- antibodies
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- The guards of the castle (Leukocytes, 2nd line of defense) catch the pathogens and try to stop them
- Now that these guys are all bound up, i can have my tasty meal
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- I'll remember what these green guys look like so in case they come back!
- The WBCs try to fight off the pathogens, but they're too strong, so they call in reinforcements (3rd line of defense)
- After being called by the Leukocytes, the Lymphocytes (3rd line of defense) begin to produce antibodies to fight off the pathogens
- The pathogens are defeated for now, and the memory cells will recognize them if they try to invade again...
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