State the role of mitochondria.
State one characteristic of plants that distinguishes them from fungi.
State the balanced chemical equation for this form of respiration in yeast.
Using the gradient on Fig. 1.2, calculate the rate at which carbon dioxide gas is produced by the yeast in a sugar solution from 10 minutes to 15 minutes. Include the unit.
Suggest why an oil layer is included in the apparatus shown in Fig. 1.1.
State one reason why the yeast in a sugar solution produced no further carbon dioxide gas after 35 minutes, as shown in Fig. 1.2.
Explain why carbon dioxide was not produced at $95^\circ\text{C}$.
State one use humans make of the carbon dioxide gas produced by yeast cells.
State the name of one gas, apart from carbon dioxide, that contributes to the enhanced greenhouse effect.