Alberta Written Barber Practice Exam

How can bacteria that form spores typically be destroyed?

1. Using antibacterial soap

2. Regular disinfection

3. Using a sporicidal product or sterilization

4. Heating to high temperatures

The correct answer is: Using a sporicidal product or sterilization

Bacteria that form spores, such as Bacillus and Clostridium species, have a unique survival mechanism that allows them to withstand extreme conditions, including heat, desiccation, and chemical disinfectants. The process of spore formation enables these bacteria to enter a dormant state, making them highly resistant to many commonly used germicides. The most effective way to eliminate spore-forming bacteria is through the use of sporicidal products or by employing sterilization methods. Sporicidal products are specifically designed to penetrate the protective layers of spores and disrupt their structural integrity or metabolic processes. Sterilization, which involves processes such as autoclaving (steam under pressure) or dry heat sterilization, can reach temperatures and conditions that effectively destroy the spores. This resistance means that simple antibacterial soaps, regular disinfection, or even high temperatures alone may not adequately eliminate spores. Therefore, to ensure complete eradication of spore-forming bacteria, relying on specific sporicidal agents or sterilization techniques is essential. This is crucial in environments such as healthcare settings or laboratories, where the presence of resilient spores can pose serious health risks.