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)

Question

Responses

Both species X and Y are anaerobic
Both species X and Y are anaerobic
Only species Y is aerobic
Only species Y is aerobic
Both species X and Y are aerobic
Both species X and Y are aerobic
Only species Y is anaerobic

Answer 1

Based on the information provided:

• Species X produces CO2 and H2O during cellular respiration. This indicates that it is likely undergoing aerobic respiration, as the end products of aerobic respiration are typically carbon dioxide and water.
• Species Y produces ethyl alcohol and CO2, which is characteristic of anaerobic fermentation (specifically alcoholic fermentation). This suggests that species Y is anaerobic since it does not fully oxidize glucose to CO2 and H2O.

Therefore, the conclusion that can be drawn is that:

Only species Y is anaerobic.