Micro 10 (Test 2) Flashcards
The destruction of the _____ of bacterial death is the actual feature that disrupted or destroyed in the bacterial cell and guarantees that the bacteria is dead.
cell membrane
TRUE or FALSE: When a bacteria dies, it’s endotoxins are eliminated with it
FALSE
_____ are powerful neuro-synapse blockers.
toxins
Most antibiotics work by damaging the
cell wall
_____ is the bursting of the cell membrane
lysis
Lysis results in the cell’s _____
spillage of the cytoplasm
_____ are organisms that still have some of their cell wall intact.
spheroplasts
_____ are organisms that have lost their entire cell wall but are still living
protoplasts
In a lab setting, protplasts are referred to as __-_____
L-forms
The process of substance passing through the capillary walls is called _____
diapedesis
Protopasts have the ability to avoid _____ which are supposed to phagocytize them.
neutrophils
IF protoplasts reach the heart valves and they start to reproduce, then it can cause _____.
sub acute bacterial endocarditis
Administration of heavy metals such as mercury, gold, or copper can cause damage to the _____ _____ by coagulating its proteins.
cell membrane
Heavy metals destroys the property of _____ _____ of cell membranes and results in lysis.
selective permeability
_____ occurs instantly whenever the temperature is raised above normal.
cell death
Coagulation is the destruction of natural proteins called _____
denaturation
Protein destruction can be called by putting them in contact with _____ _____ such as iodine, hydrogen peroxide, cyclorserines, cyanide, or arsenic.
oxidizing agents
_____ _____ is the stop in metabolism causing the bacteria to die.
competitive inhibition
Lowering the temperature doesn’t cause the bacteria to die but instead it enters _____
senescence
Raising the temperature above their _____ of their max range can cause them to die
ideal
Boiling water at 100 degrees Celsius will kill _____ and the vegetative part of _____
vegetative cells ….. spore formers
_____ _____ _____ is the lowerst temperature at which a suspension of vegetative bacteria at a prescribed temperature and under specific conditions
thermal death point
_____ _____ _____ is the shortest period of time required to kill suspension of vegetative bacteria at a prescribed temperature and under specific conditions.
thermal death time
Boiling water is technically a _____
disinfectant
Pasteurization is a _____techinque
sanitaztion
_____ is heat in the absence of water and is much less effective than moist heat.
dry heat
Gram _____ cocci is extremely susceptible to desiccation and gram _____ are extremely resistant to desiccation.
(+)…..(-)…..
