WorksheetsMicrobial Growth
Total questions: 16
Worksheet time: 12mins
A microorganism that can thrive in the presence of oxygen, but does not require it to grow would be a ___.
aerotolerant
facultative anaerobe
obligate aerobe
obligate anaerobe
What microbes can grow in an environment that has low pH?
Acidophile
Neutrophile
Alkalophile
These are microbes that can survive high temperatures.
Psychrophile
Thermophile
Mesophile
pH requirement for molds and yeast?
6.5-7.5
5-6
7-8
3
Microbes that grow in cold temperature
Psychrophile
Mesophile
Thermophile
The optimum temperature where most bacteria can survive
31-40
30-37
31-41
30-39
What is the effect of hypotonic solution to bacterial cell?
shrink
burst
nothing
•Microbes that adapts to high salt concentration
Neutrophile
Alkalophile
Halophile
Which of these chemicals (that are all required) is an essential part of DNA, RNA, ATP, and membranes?
Sulfur
Oxygen
Phosphorus
Nitrogen
The chemical growth requirements essential for bacterial growth are ...?
Water,carbon,Nitrogen & sulphur
Water
Water,carbon,oxygen,phosphorus,Nitrogen,sulphur and other trace elements
Environmental waste
Which of these is NOT a chemical requirement for growth of a bacteria?
Carbon
pH
Nitrogen
Sulfur
What microbes can grow in an environment that has low pH?
Acidophile
Neutrophile
Alkalophile
tolerate cold, doesn't like it, but can survive0 to 30 degrees C
psychrophiles
psychrotrophs
mesophiles
thermophiles
heat loving (usually archaea)40 to about 70 degrees C
psychrophiles
thermophiles
mesophiles
psychrotrophs
Grow at alkaline or high pH (7 to 12 or higher)
Acidophiles
Neutrophiles
Alkaliphiles
TOLERATE high osmotic pressure
facultative halophiles
Obligate Halophiles
Halophiles
