MBIO 3401: CONTROL OF MICROBIAL GROWTH (SMITH)
QUESTIONS AND ANSWERS 2026
Correct 53
incorrect 00
1 of 53
Definition
- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
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How does filter sterilization relate to How does desiccation relate to
microbial control? microbial control?
How does irradiation relate to How does non-ionizing radiation
microbial control? relate to microbial control?
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, 2 of 53
Definition
Organisms that thrive in extremely warm environments, with
temperatures ranging from 40-80°C.
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What are mesophiles? What are thermophiles?
What are aerotolerant anaerobes? What are extremophiles?
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3 of 53
Term
How do high temperatures relate to microbial control?
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- A physical microbial growth control
- Used to disinfect, sanitize, sterilize, and pasteurize
- Denatures proteins and destroys cytoplasmic membrane
- More effective than dry heat
- Boiling kills vegetative cells
- Can also be done by autoclaving and pasteurization
, - A physical microbial growth control
- Denature proteins
- Interfere with integrity of cytoplasmic membrane and cell wall
- Distrust structures and function of nucleic acids
- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
- Physical method
- Removes the water and drys of the microbe
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4 of 53
Term
How does lyophilization relate to microbial control?
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- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
, - A physical method used for long-term preservation of microbial cultures.
- Done by freeze drying
- A physical microbial growth control
- Denature proteins
- Interfere with integrity of cytoplasmic membrane and cell wall
- Distrust structures and function of nucleic acids
- Physical method of growth
- Introduces so much DNA damage that the cell dies
- Superficial sterilization
- Poor penetrating power
- Not common in hospitals
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5 of 53
Definition
The use of one microbe to control the growth of another.
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What is biocontrol? What is degerming?
What is BSL-1? What is disinfection?
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QUESTIONS AND ANSWERS 2026
Correct 53
incorrect 00
1 of 53
Definition
- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
Give this one a try later!
How does filter sterilization relate to How does desiccation relate to
microbial control? microbial control?
How does irradiation relate to How does non-ionizing radiation
microbial control? relate to microbial control?
Don't know?
, 2 of 53
Definition
Organisms that thrive in extremely warm environments, with
temperatures ranging from 40-80°C.
Give this one a try later!
What are mesophiles? What are thermophiles?
What are aerotolerant anaerobes? What are extremophiles?
Don't know?
3 of 53
Term
How do high temperatures relate to microbial control?
Give this one a try later!
- A physical microbial growth control
- Used to disinfect, sanitize, sterilize, and pasteurize
- Denatures proteins and destroys cytoplasmic membrane
- More effective than dry heat
- Boiling kills vegetative cells
- Can also be done by autoclaving and pasteurization
, - A physical microbial growth control
- Denature proteins
- Interfere with integrity of cytoplasmic membrane and cell wall
- Distrust structures and function of nucleic acids
- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
- Physical method
- Removes the water and drys of the microbe
Don't know?
4 of 53
Term
How does lyophilization relate to microbial control?
Give this one a try later!
- Physical Method
- Gamma rays, electron beams, X-rays
- High penetrating powers
- Used to irradiate goods and other heat-sensitive items
, - A physical method used for long-term preservation of microbial cultures.
- Done by freeze drying
- A physical microbial growth control
- Denature proteins
- Interfere with integrity of cytoplasmic membrane and cell wall
- Distrust structures and function of nucleic acids
- Physical method of growth
- Introduces so much DNA damage that the cell dies
- Superficial sterilization
- Poor penetrating power
- Not common in hospitals
Don't know?
5 of 53
Definition
The use of one microbe to control the growth of another.
Give this one a try later!
What is biocontrol? What is degerming?
What is BSL-1? What is disinfection?
Don't know?
