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Virus Module Set 4
Question | Answer |
---|---|
Helical capsid | Shaped like hallow tubes with protein walls |
Icosahedral capsids | Regular polyhedron with 20 equilateral triangular faces and 12 vertices |
Capsomer | Ring or knob shaped units made of 5 or 6 protomers |
Pentamers | 5 subunit capsomers |
Hexamers | 6 subunit capsomers |
Viral envelopes: | Membrane structures surrounding some viruses |
Viral envelopes contain | Lipids and carbohydrates, usually derived from host membranes |
Peplomers (spikes): | Proteins in envelope that are VIRUS-SPECIFIC |
Viral enzymes observed | In some viruses |
Viral enzymes associated | With or within capsid |
Some viruses DO NOT fit into the category of having | Helical or icosahedral capsules |
Poxvirus | Largest animal virus |
Binal symmetry: | Having BOTH icosahedral and helical symmetry |
Large bacteriophages have | Binal symmetry |