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Questions and Answers List

Question	Answer
• a protein coat that surrounds the nucleic acid. • The structure is usually determined in the type of nucleic acid and accounts for most of the mass of viruses	Capsid
• Each capsid is composed of protein subunits called what?	capsomeres
• a single type of protein or several types.	Capsomeres
• Covers the capsid, outer surface • Usually comes from the host cell’s plasma membrane plus through the process of extrusion	Envelope some envelope have spikes
• Serve as attachment, protection and identification	Spikes
• Are capsid that are not covered by enveloped that protects the nucleic acid from nuclease enzymes	Nonenveloped viruses
enzymes that cleave the nucleic acid in biological fluid; it also promotes attachment to susceptible hosts	nuclease enzymes
• The process of forcing out or migration from its normal processes	Extrusion
GENERAL MORPHOLOGY of viruses; types;	• Helical Viruses • Polyhedral Viruses • Enveloped Viruses • Complex Virus
Viruses are classified by what?	• differences in the structures of their coats