breif answers to these questions please 1) What is the danger of having your nor
ID: 209660 • Letter: B
Question
breif answers to these questions please
1) What is the danger of having your normal flora (bacteria that normally colonize your
body) become resistant to several antibiotics?
2)5. Are bacteria ubiquitous in the environment? Explain.
3)
3. Is it possible to employ this method (streak plating) on a different type of plate than TSA? If not, why not? If
so, what would its benefits be?
Pretend that your agar plates (that were supposed to be sterile) grow bacteria without
being inoculated. Suggest a possible explanation for this.
Explanation / Answer
A regimen of antibiotic drugs introduces an artificial selection gradient in the human body for antibiotics resistance to the microbial flora. If the we keep consuming antibiotics intentionally or accidently(by ingestion of antibiotics treated meat or processed foods) there would be an immense effect on the flora that gives us the first line of defense in immunity gets affected. The friendly bacteria gets killed then we would be giving space for the pathogenic bacteria to grow in our body spoiling our immunity and giving space to variant diseases caused by those pathogenic bacteria. If these pathogenic bacteria also get resistant to those commonly ingested antibiotics then there would be no other solution for these diseases to stop spreading in our body.
Yes Bacteria in nature are ubiquitous. They are present everywhere, however each species has its own habitation for its living and survival. They choose their own niche based on various factors namely temperature, pH, oxygen levels, presence of water, presence of toxins.
TSA plate is generally used for growing, isolating and storing of various microorganisms. Streak plate method is the method used to isolated microorganisms and get a pure culture of it with isolated colonies of the growth. In order to get isolated colonies a streak plate method is done. This method could be done on any culture plate , TBS also gives the same accuracy in results. we only need to make sure which microorganism grow well in which medium. Other than that streak plate gives equal results done on any plate.
If you leave agar plate without inoculating bacteria on it, either left in laminar air flow chamber or in any other place, there would be growth of bacteria. The air around us definitely consists of thousands of bacteria. when bacteria in air finds a suitable medium for its growth, it would settle on the plate and grow even if you don't inoculate the bacteria required. Even if the plate is sealed there could be chances of growth of unwanted bacteria present in the air or in the surrounding of plate settling down and growing on the medium.
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