Quiz: Kingdom Monera; Endospores Flashcards
Forms spores; causes anthrax
Bacillus anthracis
Endospores are produced by some genera of bacteria. The reason for making the spore is to:
survive harsh environmental conditions
Forms spores; causes botulism
Clostridium botulinum
T or F: tetanus is a toxin produced by clostridium tetani. This species produces spores.
True
A spore producing bacterial species which causes food-borne infectious disease typically associated with rice dishes is
Bacillus cereus
How long does it take to produce a spore?
6 hours
How long does it take for a spore to germinate?
1 1/2 hours
How long can spores survive?
Virtually an eternity
What is the signal for a spore to germinate?
The presence of a nutrient such as an amino acid & water.
How do microbiologists prevent microbial contamination when making media?
The media is cooked for 15 min at 120•C & at 15 psi.
The media is treated so that spores are killed.
The media is placed in an autoclave.
T or F: if you can kill a spore, you will kill any other life form.
True
Which structure of a spore makes it resistant to chemicals?
The protein coat
Which structure of a spore makes it resistant to heat?
A desiccant in the spore