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Ch. 12 Review

Horizontales
Require constant supply of oxygen to survive
This type of cell does not have membrane bound organelles
A spiral shaped bacterium may have this in its name.
Disease-causing substance
Bacterium takes in a piece of bacterial DNA that is floating free in the environment
Transfer of viral DNA into a bacterium by a bacteriophage
Kingdom containing unicellular prokaryotes that live in extreme environments
Cell wall molecule in bacteria, but not in archaea
A circular piece of chromosomal DNA in a bacterium
The virus cycle in which the host cell is destroyed to release the new viruses produced by that host
Bacteria are helpful to humans because they ______vitamins B12 and K
Verticales
Bacteria form these to survive in unfavorable conditions
Decomposers: Live on dead organic matter
The collection of bacteria that live in humans
Transfer of a bacterial plasmid from one bacterium to another through a pilus
An injection of a weakened or killed pathogen that allows the immune system to recognize and build "weapons" against a later invasion of that virus
A bacterium with a rod shape may have this in its name
Carries genetic information, but cannot reproduce on its own; therefore, is not classified as a living organism
Cycle in which a virus infects a cell, but does not destroy the host; the host divides naturally and spreads the virus that way
Most common form of reproduction in bacteria; asexual; produces 2 identical daughter cells (two words)
Cannot survive without bacteria
__fixation: process by which bacteria make an essential componet for making amino acids available to plants and animals
Bacteria that thrive in extreme temperatures
A bacterium with a spherical shape may have this suffix
Outer covering on bacteria that prevents its drying out