Question

Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?(1 point)ResponsesOnly species Y is anaerobicOnly species Y is anaerobicOnly species Y is aerobicOnly species Y is aerobicBoth species X and Y are anaerobicBoth species X and Y are anaerobicBoth species X and Y are aerobicBoth species X and Y are aerobic

Answer 1

Based on the information provided about the two species of bacteria, we can draw the following conclusions regarding their respiration processes:

• Species X produces CO2 and H2O, which indicates that it undergoes aerobic respiration since these are the byproducts of complete oxidation of organic molecules in the presence of oxygen.
• Species Y produces ethyl alcohol and CO2, which indicates that it undergoes fermentation (specifically alcohol fermentation) or anaerobic respiration, as these are the byproducts when organic molecules are broken down without oxygen.

From these observations, we can conclude that:

Only species Y is anaerobic.