Microbial Control Methods
Biology ⇒ Microorganisms and Microbiology
Microbial Control Methods starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Microbial Control Methods.
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When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
Describe how autoclaving works to sterilize materials.
Describe one advantage and one disadvantage of using chemical disinfectants.
Describe the difference between bactericidal and bacteriostatic agents.
Describe the principle behind filtration as a microbial control method.
Describe the principle of pasteurization and its main purpose.
Explain the difference between antiseptics and disinfectants.
A hospital wants to sterilize a solution that cannot be heated. Which method should they use?
(1) Boiling
(2) Filtration
(3) Dry heat
(4) UV radiation
A laboratory technician needs to sterilize a nutrient broth that contains vitamins sensitive to heat. Which method should be used?
(1) Autoclaving
(2) Filtration
(3) Dry heat
(4) Boiling
A hospital wants to sterilize a solution that cannot be heated. Which method should they use?
(1) Boiling
(2) Filtration
(3) Dry heat
(4) UV radiation
A laboratory technician needs to sterilize a nutrient broth that contains vitamins sensitive to heat. Which method should be used?
(1) Autoclaving
(2) Filtration
(3) Dry heat
(4) Boiling
Which of the following chemical agents is commonly used for water treatment?
(1) Phenol
(2) Chlorine
(3) Alcohol
(4) Silver nitrate
Which of the following is a limitation of using ultraviolet (UV) radiation for sterilization?
(1) It cannot penetrate surfaces
(2) It is toxic to humans
(3) It is expensive
(4) It is not effective against viruses
Fill in the blank: The process of freeze-drying microorganisms for long-term storage is called __________.
Fill in the blank: The use of gamma rays to sterilize disposable medical equipment is an example of __________ sterilization.
Fill in the blank: The use of high concentrations of salt or sugar to preserve food is an example of __________ pressure.
Fill in the blank: The use of phenol as a disinfectant was first introduced by __________.
Boiling water for 10 minutes is sufficient to kill all bacterial endospores. True or False?
True or False: All disinfectants are sterilants.
True or False: Antiseptics can be safely used on living tissues.
True or False: Disinfection always results in the complete destruction of all forms of microbial life.
