06 Question (2 points) G See page 502 Colonoscopies are an effective way to dete
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06 Question (2 points) G See page 502 Colonoscopies are an effective way to detect early stages of colon cancer and precancerous polyps.Howeve involve the use of carbohydrate-containing solutions, which, if fermented by the gut microbiota,can produce combustible gases.Obviously, the presence of such gases presents a risk if polyps,are to be removed using electrocautery (which might cause a spark) and thus they must be flushed from the colon prior to the procedure r, preparation for the procedure may 1st attempt Part 1 (1 point) See Hint fermentation. The explosive gas, H2, may be produced by commensal E. coli metabolizing sugars via carbon dixide lactic acid mixed-acid See Hint Part 2 (1 point) Certain archaea can also generate a small amount of energy by using the hydrogen released by E. colito produce 11 OF 16 QUESTIONS COMPLETEDExplanation / Answer
1.The explosive gas hydrogen may be produced by commensal E coli metabolizing sugars via mixed fermentation. Mixed acid fermentation in E.coli produces various carboxylic acids including acetic acid and also gases like hydrogen and carbon dioxide.
2.
The explosive gas hydrogen may be produced by commensal E coli metabolizing sugars via mixed fermentation. This gas released by E.coli is used by certain archaea to produce methane.
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