BI-1026
Aerobic respiration
Biology · Secondary 3 · Hard · Aerobic respiration
A student compares two compost bins. Bin X has many air holes; Bin Y is airtight. Both contain equal masses of dead leaves and the same bacteria. Which statement correctly explains the main difference in respiration of bacteria in the two bins?
- Bacteria in Bin X mainly respire aerobically, while those in Bin Y mainly respire anaerobically.
- Bacteria in both bins only respire anaerobically because they are in soil.
- Bacteria in Bin X do not respire, while those in Bin Y respire aerobically.
- Bacteria in both bins respire aerobically because they do not need oxygen.
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