Micro 3 (Test 1) Flashcards
Most antibiotics work by destroying the ____ of bacteria
cell wall
The _____ controls what enters and exits a cell
cell membrane
_____ is the process of expelling wastes and other materials to the outside of a cell.
exocytotsis
_____ is the term referring to the process of sexual reproduction in bacteria.
conjugation
_____ are hollow structures that aid in the process of bacterial reproduction
pilli
_____ are solid, hair-like appendages found on most bacteria
fimbria
_____, _____, and _____ are made up of proteins that act as antigenic sites
fimbria, pilli, flagella
_____ are very long strands of proteins that are used for motility
flagella
_____ are exposed proteins on the surface of a bacterium that are easily recognized as foreign
antigenic sites
_____ is the protein that makes up pilli and fimbria
tubulin
_____ is a single flagella located at both poles
bitrichous
_____ has no flagella
atrichous
_____ completely surrounded by flagella
peritrichous
_____ a single flagella located at one pole
monotrichous
_____ tufted flagella at one pole
lopotrichous
_____ tufted flagella at both poles
amphitrichous
Most cocci are gram (-) are _____ (do not have any flagella)
atrichous
Flagella are made up of a protein called _____
flagellin
The _____ is very thin layer of waste products that adhere to the surface of the cell wall
slime layer
The _____ is a visible, thick envelope surrounding some highly pathogenic species of bacteria.
capsule
True or False: a slime layer can mask antigenic sites
TRUE
Only gram (+) _____ have the ability to produce spores
bacilli
_____ act as “survival chambers” that allow bacteria to regain its properties after harsh conditions have passed.
endospores
True or False: Endospores play a major reproductive role in bacteria
FALSE
they play a major role is survival
The endospores are highly resistant to…
- heat 2. detergents (disinfectants) 3. drying
The _____ part of the cell is easily destroyed under harsh conditions
vegetative strate
_____ is a binder that prevents bacteria from washing away.
laminase
_____ is the process by which bacteria take internal items and releases them externally.
exocytosis
The _____ is the space between the cell wall and the cell membrane.
periplasmic space
