Select all that applyDifficulty 3/5 · ChallengingOlympiadRepresenting dataArgumentation
Yeast with and without air
Topic: Glycolysis & fermentation
Two flasks contain the same mass of a yeast strain that respires glucose completely whenever O₂ is available. Both get the same glucose medium at 30 °C. Flask 1 is flushed with nitrogen and sealed; flask 2 has air bubbled through it. Over one hour the student measures glucose used, ethanol made, CO₂ released and O₂ taken up.
Data
| Flask | Glucose used (mmol) | Ethanol made (mmol) | CO₂ released (mmol) | O₂ taken up (mmol) |
|---|---|---|---|---|
| 1 (sealed, N₂) | 8.0 | 15.0 | 15.2 | 0 |
| 2 (aerated) | 1.0 | 0 | 6.0 | 6.0 |
Select every conclusion the data support.
Answer every part to submit.