ultramicroscopic infectious agent that replicates itself only within cells of living hosts
any disease-producing agent (especially a virus or bacterium or other microorganism)
the outer covering of protein surrounding the nucleic acid of a virus
A lipid bilayer that surrounds the capsid of an animal virus.
A protein covalently attached to a carbohydrate.
a virus that infects bacteria
Viral cycle in which the virus infects a cell, takes over its functions, reproduces itself, and then leaves the cell, destroying it.
Viral DNA that inserts into a host genome.
Viral cycle in which the virus's genetic material becomes incorporated into the host cell's DNA and reproduces with the host cell.
infectious particles composed of protein with no nucleic acid
single-stranded RNA molecule that has no surrounding capsids
hairlike structure especially on the surface of a cell or microorganism
aerobic rod-shaped spore-producing bacterium
any spherical or nearly spherical bacteria
any flagellated aerobic bacteria having a spirally twisted rodlike form
A sticky layer that surrounds the cell walls of some bacteria, protecting the cell surface and sometimes helping to glue the cell to surfaces.
a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections
dormant bacterial cell enclosed by a tough coating that is highly resistant to environmental stress
form of sexual reproduction in which paramecia and some prokaryotes exchange genetic information
depending on free oxygen or air
living or active in the absence of free oxygen
Region of prokaryotic cells where DNA is located
A form of asexual reproduction that produces identical offspring
convert hydrogen gas and carbon dioxide into methane gas
live in exreme salt water
Organisms that are found in conditions hot enough that most organisms cannot tolerate them.
A prokaryote that lives in an extreme environment.