Virology: Viral Morphology and Capsid Structure

Protein shell (capsid) plus the entire virus (sometimes including the viral envelope)

The associated complex of the nucleic acid core and the capsid proteins, synonymous to virion.

Mixtures of neutral lipids, phospholipids, glycolipids, and specific proteins.

<p>A naked capsid is a complete virion with no surrounding membrane, while an enveloped virus has a cellular type membrane surrounding the nucleocapsid.</p> Signup and view all the answers

<p>A less complex and smaller infectious agent consisting of short naked fragments of SS RNA.</p> Signup and view all the answers

<p>Prions are small infectious proteins causing fatal neurologic diseases. Diseases associated with prions include Scrapie, BSE (mad cow disease), and Kuru/Creutzfeldt-Jacob (C-J) disease.</p> Signup and view all the answers

<p>Spongiform encephalopathies are diseases where the brain becomes riddled with holes, resembling a sponge. They are characterized by loss of coordination, dementia, and other neurologic symptoms.</p> Signup and view all the answers

<p>Kuru was common among natives of Papua, New Guinea, where women and children ate prion-infected human brains as part of a traditional burial custom known as ritualistic cannibalism.</p> Signup and view all the answers

<p>EBV causes Nasopharyngeal cancer, Burkitt's lymphoma, and B-cell Lymphoma.</p> Signup and view all the answers

<p>The three categories are icosahedron, filamentous, and complex bacteriophage.</p> Signup and view all the answers