Some bacteria produce proteins which damages the material holding the cells together. Some other microorganisms produce toxins which poison the cells, causing fever and inflammation.
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How does bacteria reproduce?
...by making copies of themselves.
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Which kind of conditions are needed for bacteria to reproduce?
They need a source of nutrients for energy, warm, moist condition so thr chemicsl reaction can take place inside them.
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What is Immune System?
Immune system is a system which deals with any infectious microorganisms that enter the body.
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What does Immune system involves?
White Blood Cells.
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What does white blood cells do ?
They detect the foeign antigens and that attact them and then digest them.
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Whar are Antigens?
Antigens are substances that trigger immune responses - They are usually the protein molecules from the surface of a microorganisms cell.
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What are antibodies?
Antibodies are proteins that are specific to a particu;ar antigen. (different microorganisms have different antigens, so a different antibody is needed to recognise each different microorganisms.
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How does antibodies work?
They latch on to the surface of the foreign microorganisms and mark the surface, and then produce the antidodies which can fit onto the antigens, antibodies goes around and kills the foreign microbes.
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What is left behind once the infection is cured?
Memory cells
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What are memory cells?
Memory cells are the copies of the antibodies of different infections so if the body's immune system tackles the same infection again the body recognises the antigens and produce antidodies from the memory cells and kill the bacteria.
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Vaccinations are.....
Safe version of a dangerous bacteria/microorganisms
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What is Immunisation?
Immunisation involves injecting dead or inactive microorganisms. They carry dead or inactive harmless microorganisms.
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How immunisation helps to fight with microorganisms?
When invading bacteria attacks the body the inactive cells of that infection makes antibodies and fight with the bacteria.
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Other cards in this set
Card 2
Front
How toxins damages the cells?
Back
Some bacteria produce proteins which damages the material holding the cells together. Some other microorganisms produce toxins which poison the cells, causing fever and inflammation.
Card 3
Front
How does bacteria reproduce?
Back
Card 4
Front
Which kind of conditions are needed for bacteria to reproduce?
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