A disease in which the pathogens can be passed from one host to another.
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What is communicable disease?
When it can infect other people, animals, plants and other things that live.
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What is non-communicable disease?
Cannot be spread from organism to organism
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How viruses are produced?
Original virus inserts genetic material into the host. The genetic material uses the host cells protein synthesis pathways to reproduce.
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Name all the transmission of viruses
Air, Touch, water, food, animal, sex
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Defense against diseases (mechanical barriers)
Nostrils contains hairs to trap dust
skin has thick layer of dead cells
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Chemical Barriers
Sticky mucus
The blood streams
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how do microbes enter the body?
eyes, ears, mouth, nose, skin, cuts, genitals
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What does mouth have for bacterial defense?
Hydrochloric acid, which is highly concentrated and will kill them.
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What bacterial defense is used when there is a cut?
can quickly heal by clotting the blood and then forming a scab to stop being exposed to air.
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What bacterial defense is used in stomach?
Stomach produces acid to kill germs
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What do antibodies do?
They cause microbes to clump together
They stop microbes entering cells
They make it easier for white blood cells to inject them.
They are Y shaped that help eliminating disease causing microbes from directly destroying them.
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What are Antigens?
They are unique marker on the outside of cells and pathogens.
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Other cards in this set
Card 2
Front
what is Transmissible disease?
Back
A disease in which the pathogens can be passed from one host to another.
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