Flashcards in Microbial Growth & Nutrition Deck (17):
On an agar plate, a discrete colony arising from a single parent cell is known as:
What are the 6 major elements in an organism?
Obligate aerobes grow ___ oxygen, while obligate anaerobes grow ____ oxygen (with or without)
Give an example of a microaerophile (grow best in low oxygen concentrations)
Anabolism/growth often ceases because of insufficient ____ (element)
Name the 3 physical requirements for growth of microorganisms
___ can multiply in the refrigerator
____ grow best inside the human body (37 degrees Celsius. These are pathogens)
With respect to pH, what group do most human pathogens belong to? (They grow best around neutral pH)
Helicobacter pylori is found in the stomach, what group does it fit in in regards to pH?
Neutrophile (It was once thought to be an acidophile, but thats not the case)
A common isolation technique for obtaining pure cultures:
Streaking (streak plate)
A polysaccharide from marine algae
Best method for long-term preservation of bacterial cultures?
Serial dilution and viable plate counts, membrane filtration, and microscopic counts are all ___ methods for measuring microbial reproduction
Dry weight and turbidity (A600) are ____ methods for measuring microbial growth
Quick and dirty way to measure microbial growth?