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.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
Describe how filtration can be used to sterilize liquids.
Describe one reason why microbial control is important in the food industry.
Describe the difference between disinfection and antisepsis.
Explain why autoclaving is considered more effective than boiling for sterilization.
Explain why hand washing is important in microbial control.
Explain why refrigeration slows down the growth of microorganisms.
Explain why some bacteria are more resistant to chemical disinfectants than others.
A hospital wants to sterilize a batch of surgical instruments quickly. Which method should they use?
(1) Boiling
(2) Autoclaving
(3) Freezing
(4) UV radiation
A hospital wants to sterilize a batch of surgical instruments quickly. Which method should they use?
(1) Boiling
(2) Autoclaving
(3) Freezing
(4) UV radiation
The use of antiseptics is most important in which of the following situations?
(1) Cleaning floors
(2) Washing hands before surgery
(3) Sterilizing surgical instruments
(4) Disinfecting water
Which chemical agent is commonly used for hand sanitization in hospitals?
(1) Phenol
(2) Alcohol
(3) Chlorine
(4) Formaldehyde
Which method is best for sterilizing nutrient solutions that are heat-sensitive?
(1) Dry heat
(2) Filtration
(3) Boiling
(4) UV radiation
Boiling water for 10 minutes will kill most bacteria, but may not destroy __________.
The lowest temperature at which all microorganisms in a liquid suspension are killed in 10 minutes is called the __________.
The process of heating milk to 72°C for 15 seconds to reduce microbial load is called __________.
The process of reducing the number of microorganisms to a safe level, as judged by public health standards, is called __________.
Is it true that ultraviolet (UV) radiation is used to disinfect air and surfaces in laboratories?
True or False: Alcohol-based hand sanitizers are effective against most bacteria and some viruses.
True or False: All sterilization methods are suitable for all types of materials.
True or False: Antiseptics are less toxic than disinfectants.
