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At what temperature does agar solidifies at?
40 C
Aerotolerant anaerobe
Does not require oxygen, but can survive and grow in the presence of it.
Obligate anaerobe
Cannot survive in the presence of oxygen due to the lack of enzymes.
Anaerobe
Does not utilize oxygen.
Microaerophilic
Only requires a little bit of oxygen.
Facultative anaerobe
Utilizes oxygen, but can also grow without it.
Obligate aerobe
Must have oxygen to grow, cannot grow without it.
Aerobe
Utilizes oxygen and can detoxify it.
List the 3 temperature adaptation groups.
Psychrophiles, mesophiles, and thermophiles.
Psychrophiles
Cold loving organisms; optimum temperature at 15 C, capable of growth at 0 C.
Mesophiles
Optimum temperature at 20-40 C. Grow at human body temperature. Most human pathogens.
Thermophiles
Heat loving. Optimum at 45 C+.
Heterotroph
Must have carbon in an organism form made by other living organisms. Ex. Proteins, lipids, carbs.
Autotroph
An organism that uses CO2, an inorganic gas as its carbon source. It is not nutritionally dependent on other living things.
Chemotrophs
Gain energy from chemical compounds/other organisms. Ex- Protozoa, fungi, many bacteria and animals.
What are the 2 carbon sources for nutritional types?
Heterotrophs and autotrophs
Phototrophs
Gain energy through photosynthesis.
What are the 2 energy sources for nutritional types?
Chemotrophs and phototrophs.
Exponential of logarithemic
Each new fusion cycle increases the population factor by 2.
What factors effect the function of metabolic microbial enzymes?
Temperature
Oxygen Requirements
pH
Electromagnetic radiation
Barometric pressure
