Pharmacy Practice MCQ, in this article we will solve, Practice MCQ under subject Microbiology. Read following article for your reference.
- What is the primary principle behind chemical sterilization?
- A) Heat application
- B) Use of chemical agents
- C) Radiation exposure
- D) Mechanical filtration
- Which of the following is a gaseous sterilant?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) All of the above
- What is the main mechanism of action for chemical sterilants?
- A) Disruption of cell membranes
- B) Protein denaturation
- C) Nucleic acid damage
- D) All of the above
- Which chemical agent is known for causing alkylation of nucleic acids?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Ozone
- D) Formaldehyde
- What is a major advantage of using ethylene oxide for sterilization?
- A) High penetration capability
- B) Low toxicity
- C) Quick process
- D) No need for aeration
- Which of the following is a disadvantage of chemical sterilization?
- A) High cost
- B) Long exposure time
- C) Potential toxicity
- D) All of the above
- What type of materials are typically sterilized using chemical methods?
- A) Heat-sensitive materials
- B) Metal instruments
- C) Glassware
- D) All of the above
- Which chemical sterilant is commonly used in liquid form?
- A) Ethylene oxide
- B) Formaldehyde
- C) Hydrogen peroxide
- D) Ozone
- What is the role of reactive oxygen species (ROS) in chemical sterilization?
- A) Disrupt cell membranes
- B) Denature proteins
- C) Damage nucleic acids
- D) All of the above
- Which of the following is NOT a factor affecting chemical sterilization?
- A) Concentration of the chemical agent
- B) Temperature
- C) Humidity
- D) Color of the material
- What is a common application of chemical sterilization?
- A) Sterilizing surgical instruments
- B) Sterilizing pharmaceuticals
- C) Sterilizing laboratory equipment
- D) All of the above
- Which chemical agent is known for its oxidizing properties?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) Chlorine dioxide
- What is the main disadvantage of using ethylene oxide?
- A) High cost
- B) Long aeration time
- C) Low penetration capability
- D) Ineffectiveness against spores
- Which of the following is a gaseous sterilant used in combination with heat?
- A) Ethylene oxide
- B) Formaldehyde
- C) Ozone
- D) Hydrogen peroxide
- What is the primary benefit of using chemical sterilization for heat-sensitive materials?
- A) Quick process
- B) No damage to materials
- C) Low cost
- D) High efficiency
- Which chemical agent is effective against a wide range of microorganisms, including spores?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) Ozone
- What is the main challenge associated with chemical sterilization?
- A) Ensuring complete penetration
- B) High cost
- C) Long exposure time
- D) All of the above
- Which of the following is a liquid sterilant?
- A) Ethylene oxide
- B) Formaldehyde
- C) Hydrogen peroxide
- D) Ozone
- What is the primary mechanism of action for ethylene oxide?
- A) Protein denaturation
- B) Nucleic acid alkylation
- C) Oxidation
- D) Cell membrane disruption
- Which chemical agent is known for its ability to penetrate barrier packaging?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) Ozone
- What is a common use of formaldehyde in chemical sterilization?
- A) Sterilizing medical devices
- B) Sterilizing pharmaceuticals
- C) Sterilizing laboratory equipment
- D) All of the above
- Which of the following is a disadvantage of using hydrogen peroxide for sterilization?
- A) High cost
- B) Potential material damage
- C) Long exposure time
- D) Low penetration capability
- What is the main advantage of using ozone for sterilization?
- A) High efficiency
- B) Low cost
- C) Quick process
- D) No need for aeration
- Which chemical agent is known for its ability to cause protein denaturation?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) Ozone
- What is the primary benefit of using chemical sterilization for pharmaceuticals?
- A) Quick process
- B) No damage to materials
- C) High efficiency
- D) Low cost
- Which of the following is a gaseous sterilant used in combination with heat?
- A) Ethylene oxide
- B) Formaldehyde
- C) Ozone
- D) Hydrogen peroxide
- What is the main disadvantage of using formaldehyde for sterilization?
- A) High cost
- B) Potential toxicity
- C) Long exposure time
- D) Low penetration capability
- Which chemical agent is effective against a wide range of microorganisms, including spores?
- A) Ethylene oxide
- B) Hydrogen peroxide
- C) Formaldehyde
- D) Ozone
- What is the primary mechanism of action for hydrogen peroxide?
- A) Protein denaturation
- B) Nucleic acid alkylation
- C) Oxidation
- D) Cell membrane disruption
- Which of the following is a common application of chemical sterilization?
- A) Sterilizing surgical instruments
- B) Sterilizing pharmaceuticals
- C) Sterilizing laboratory equipment
- D) All of the above
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