1. Provide an example scenario in which the culturing of bacteria would be used
ID: 206643 • Letter: 1
Question
1. Provide an example scenario in which the culturing of bacteria would be used in the study of an environmental science issue?
2. Are these hypothesis suppported or not & explain?
Hypothesis: A simple organism (yeast) will have a higher rate of cellular respiration in the presence of a source of carbohydrate than in the absence of a source of carbohydrate, as evidenced by the quantity of CO2 produced.
Hypothesis: A simple organism (yeast) will have a lower rate of cellular respiration in the presence of a source of carbohydrate and a simulated pollutant than in the presence of a source of carbohydrate and the absence of a simulated pollutant, as evidenced by the quantity of CO2 produced.
Explanation / Answer
Bacterias are the the prokaryotes which are the simplest microorganisms.we have different varieties of bacteria, few are helpful and few are harmful for the people.
Culturing bacteria means letting the microbes or bacteria reproduce in a culture medium which is predetermined and have controlled laboratory conditions.In molecular biology, bacteria culture is a diagnostic method which is used as a research tool.
Let,s take an example of a type of filamentous bacteria actinomycetes and plastic eating bacteria to demonstrate how they can be used in the study of an environmental science issue.
Actinomycetes are group of bacteria which are quite useful for the people. They are filamentous and consists of multiple cells club together to form hyphae.They can be found everywhere, in all the weather condition on Earth. They are used in making antibiotics, streptomycin. So, if actinomycetes are cultured we'll be able to produce more antibiotics and we'll be more sound healthwise.
We can take example of plastic eating bacteria (found by a Canadian student in 2008). As we know that plastic is a major cause of environment pollution. So, if we culture more plastic eating bacteria, they are going to decompose plastic and our environment will become pollution free.
Both the hypothesis are suppported.
Explanation for hypothesis 1: Cellular respiration means breakdown of glucose and gettting energy and other byproducts out of it. If carbohydrate is not there, there will be no respiration. Thus, presence of source of carbohydrates ensure higher rate of cellular respiration.
Explanation for hypothesis 2: A simple organism (yeast) will have lower rate of cllular respiration in the presence of a source of carbohydrate and a simulated pollutant because the rate at which the CO2 is released when carbohydrates are mixed with pollutants is very slow; that means cellular respiration becomes slow.
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