What is the main purpose of ethanol on lab surfaces?

What is the main purpose of ethanol on lab surfaces?

• A. To clean dirt
• B. To kill bacteria
• C. To create a sterile environment
• D. To enhance safety

Answer: (B)

The main purpose of ethanol on lab surfaces is to kill bacteria. Ethanol, commonly used in concentrations of 70% for effective disinfection, is known for its ability to denature proteins and dissolve lipids, making it effective against a wide range of microbial pathogens. By disrupting cellular membranes and denaturing proteins, ethanol can effectively reduce the microbial load on surfaces, minimizing the risk of contamination in laboratory environments. While cleaning dirt and creating a sterile environment are important aspects of lab maintenance, they do not fully encapsulate the primary function of ethanol, which is specifically targeted at microbial disinfection. Additionally, enhancing safety can be a secondary benefit of using ethanol, as it reduces the potential for microbial infection; however, the core purpose remains focused on its antimicrobial properties.

The main purpose of ethanol on lab surfaces is to kill bacteria. Ethanol, commonly used in concentrations of 70% for effective disinfection, is known for its ability to denature proteins and dissolve lipids, making it effective against a wide range of microbial pathogens. By disrupting cellular membranes and denaturing proteins, ethanol can effectively reduce the microbial load on surfaces, minimizing the risk of contamination in laboratory environments.

While cleaning dirt and creating a sterile environment are important aspects of lab maintenance, they do not fully encapsulate the primary function of ethanol, which is specifically targeted at microbial disinfection. Additionally, enhancing safety can be a secondary benefit of using ethanol, as it reduces the potential for microbial infection; however, the core purpose remains focused on its antimicrobial properties.