Which action is explicitly listed as part of aseptic technique?

Which action is explicitly listed as part of aseptic technique?

• A. Flaming inoculation loops
• B. Spraying the bench with perfume
• C. Wearing rings during work
• D. Eating in the lab

Answer: (A)

Aseptic technique focuses on keeping the culture environment free of unintended microbes by using sterilized tools and careful handling. Flaming the inoculation loop until it’s red-hot wipes away any microbes from the tool, so you only transfer what you intend and don’t contaminate the sample. The other actions don’t support sterile work: perfume doesn’t sterilize and can interfere with samples or create hazards; rings can trap microbes and complicate cleaning; and eating in the lab introduces contaminants and is unsafe for both you and the experiments.

Aseptic technique focuses on keeping the culture environment free of unintended microbes by using sterilized tools and careful handling. Flaming the inoculation loop until it’s red-hot wipes away any microbes from the tool, so you only transfer what you intend and don’t contaminate the sample. The other actions don’t support sterile work: perfume doesn’t sterilize and can interfere with samples or create hazards; rings can trap microbes and complicate cleaning; and eating in the lab introduces contaminants and is unsafe for both you and the experiments.