Biology

Which of the following is NOT a viablemethod of preventing contamination? Passing through a flame Boiling solutions Taping a lid on the Petri dish Keeping cultures at high temperatures

Posted 3 months ago

Answers (1)

George King 3 months ago

Final answer: Taping a lid on the Petri dish is not a viable method of preventing contamination. Though it can block larger particles, it cannot prevent smaller microorganisms from entering. On the other hand, methods like passing through a flame, boiling solutions, and keeping cultures at high temperatures can help in preventing contamination. Explanation: In the context of preventing contamination, the option that is NOT viable is taping a lid on the Petri dish. While this can prevent larger particles from entering the dish, it is not effective against smaller microorganisms that can pass through the edges where the tape does not provide a complete seal. Passing through a flame can kill off the majority of microorganisms, thus providing a temporary 'clean' area. Boiling solutions is a common method of sterilization, effectively killing many types of bacteria and viruses. Keeping cultures at high temperatures can also help to prevent the growth of microorganisms as many are sensitive to high heat. However, it is important to note that not all microorganisms are destroyed by high temperatures and some may even flourish. Learn more about Preventing Contamination here: brainly.com/question/29633786 #SPJ2

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