Final answer:
It is true that pre-sterilized pipette tips and microcentrifuge tubes can be stored in a Biological Safety Cabinet (BSC) to maintain a sterile environment, as long as the BSC is operated correctly.
Step-by-step explanation:
The accurate handling of pipette tips and microcentrifuge tubes is essential for maintaining strict aseptic techniques in a microbiology laboratory. Biological Safety Cabinets (BSCs) utilize HEPA filters to create a sterile environment by filtering out particulates from both incoming and outgoing air, hence reducing the risk of contamination. Therefore, storing pipette tips and microcentrifuge tubes within BSCs can be considered true, assuming these items are pre-sterilized and the cabinet is operated under the correct protocols to avoid introducing contaminants. In a BSC, it is crucial to maintain a sterile workspace to handle sensitive biological materials such as bacterial cultures, especially those requiring BSL 1 or BSL 2 containment procedures.