Fermentation of Sugars
Data Table 1
| Sugar | Initial | 15 | 30 | 45 | 60 | Total |
| Glucose | ||||||
| Sucrose | ||||||
| Lactose |
Data Table 2
| Sugar | mL CO2/(g*hr) | Moles CO2/(g*hr) | Moles ATP/(g*hr) |
| Glucose | |||
| Sucrose | |||
| Lactose |
Activity 2
Data Table 3
| Sugar | Initial | 15 | 30 | 45 | 60 | Total |
| Sucrose | ||||||
| Starch | ||||||
| Cellulose |
Data Table 4
| Sugar | mL CO2/(g*hr) | Moles CO2/(g*hr) | Moles ATP/(g*hr) |
| Sucrose | |||
| Starch | |||
| Cellulose |
1.Why are starch and cellulose used in this experiment?
2.During this experiment, one sugar produced the most gas. Explain why.
3.During the experimental setup, baby oil was layered on top of the yeast-sugar mixture. Explain why.
4.Why is it important to keep the temperature at 35°C for this experiment?
5.Why is the amount of gas you measured only an estimate of the ATP produced? Consider what you know about liquids and gases. How can you change the setup to make it more accurate?
6.What would happen if all gas was removed from the water before the experiment? Would the experiment be more, or less accurate?
