General Characteristics of Viruses Flashcards
obligatory intra cellular
they require living cells to multiply
Typical Bacteria or Virus: Intracellular Parasite?
Virus Only
Typical Bacteria or Virus: Has a plasma membrane?
Bacteria Only
Typical Bacteria or Virus: Binary Fission
Bacteria Only
Typical Bacteria or Virus: Can pass through Bacteriological Filters?
Virus Only
Typical Bacteria or Virus: Possesses Both DNA and RNA?
Bacteria Only. Viruses only contain a single type of nucleic acid, either DNA or RNA.
Typical Bacteria or Virus: ATP-Generating Metabolism?
Bacteria Only
Typical Bacteria or Virus: Ribosomes?
Bacteria Only
Typical Bacteria or Virus: Sensitive to Antibiotics?
Bacteria Only
Typical Bacteria or Virus: Sensitive to Interferon
Virus Only
host range
the spectrum of host cells the virus can infect
bacteriophages
viruses that infect bacteria
what is the average size of viruses?
20 to 1000 nm
virion
a fully developed; infectious viral particle composed of nucleic acid and surrounded by a protein coat outside the host cell
Describe the nucleic acids of viruses
can be either single stranded DNA, double stranded DNA, single stranded RNA, and double stranded RNA. Circular or linear, or in several segments
what is the nucleic acid of a virus protected by?
Capsid
capsid
protein coat of a virus that protects the nucleic acids
capsomeres
the protein subunits that make up the capsid
envelope
an outer covering that surrounds some capsids. it can be made of lipids, proteins, and carbohydrates
spikes
a carbohydrate-protein complex that project from the envelope. they can be used to attach to the host cell, and clump red blood cells together
helical viruses
long rod and the nucleic acid is found in the hollow opening
polyhedral viruses
shape of icoahedron; 20 triangular faces and 12 corners
complex viruses
the capsid head is polyhedral and the tail is helical
