Virus structure - 2011SD74Biology11

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Virus structure
by Kurt Deegan
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activity
-The protein shell of a virus __________.
-the basic subunits of the capsid_________.
-constitute a broad group of naturally occurring molecules________.
-Is a biological membrane that separates the interior of all cells from the environment________.
-Is the entirety of an organism's hereditary information________.
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usable words
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cell membrane genome
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capsomere
capsids
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lipids
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Vocab
• Capsid ; is the protein shell of a virus.
• Capsomere: The basic subunits of the capsid, an outer
covering of protein that protects the genetic material of a
virus.
• Lipids: constitute a broad group of naturally occurring
molecules, that include fats, waxes, sterols, fat-soluble
vitamins, monoglycerides, diglycerides, triglycerides,
phospholipids, and others.
• Cell membrane: is a biological membrane that separates
the interior of all cells from the outside environment.
• In modern molecular biology and genetics, the genome is
the entirety of an organism's hereditary information
Diagram
Diagram of how a virus capsid can be constructed using multiple copies of just two protein molecules
Notes
A complete virus particle, known as a virion,
consists of nucleic acid surrounded by a
protective coat of protein called a capsid.
These are formed from identical protein
subunits called capsomeres. Viruses can have
a lipid "envelope" derived from the host cell
membrane.
Video link
• http://youtu.be/8sUaxWuzmc4
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