virus and immunity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Antibiotics | are used to clear up bacterial infections.
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| virus | nonliving because it cannot reproduce on its own
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| general structure | outer protein coat and RNA or DNA
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| lytic cycle | after entering the host cell, the virus hijacks the DNA, replicates, bursts and releases new viruses.
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| Lysogenic Cycle | after entering the host cell, the virus is integrated into th host cell and ruptures after several generations.
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| Varicella | virus that causes chicken pox/shingles
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| Herpes Simplex I | virus that causes cold sores
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| first line of defense | skin and mucus
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| 2nd line of defense | release of chemicals from cells
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| Helper T cells | “activate” white blood cells called B cells
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| B cells | can create memory cells that stay in the body in case another infection arises
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| what if a cell is already infected? | Helper T cells alert Killer T cells and poke holes in the infected cell to kill it
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| active immunity | comes from exposure to a disease; longer lasting
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| passive immunity | comes from mother to baby; not permanent
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Created by:
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