Microbiology Flashcards
(28 cards)
It must invade a host cell and take control of the cell’s activity
Virus
Any cell attacked by a virus
Host Cell
Classification of viruses according to their host organism
Bacterial viruses, plant viruses, human and animal viruses
Complex type of virus and looks a bit like tadpoles
Bacteriophages
The coat of a phage is made up of what?
Protein
A virus that parasitizes a bacterium by infecting it and reproducing inside it.
Bacteriophages
Most common form of life
Bacteria
First form of life
Bacteria
Shapes of bacteria
Coccus, bacillus, spirillum
Sphere-shaped cells
Coccus
Rod-shaped cells
Bacillus
Cells shaped like bent rods or corkscrews
Spirillum
It protects the bacteria against the natural defenses of the victim’s body
Capsule
Movement of bacteria
Flagella
They do not have to remain active in order to survive
Bacteria
Conditions most important to bacteria for normal activity
Temperature, Moisture, Darkness, Food
It reproduces through binary fission
Bacteria
It reproduces by invading a host cell
Virus
Organisms that are able to make their own food from inorganic matter
Autotrophs
Energy is obtained by breaking down inorganic compounds of iron, sulfur or nitrogen
Chemosynthesis
Organisms that depend upon other living things for food
Heterotrophs
They use nonliving or dead organic matter for food
Saprophytes
Invade the bodies of plants and animals and take their food directly from living tissue
Parasites
A single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms
Protozoan
