9.17B and 9.18B - **Biology Only** Factors affecting Rate of Decomposition of Food and Compost Flashcards
1
Q
What factor affects the rate of decomposition related to temperature?
A
Chemical reactions generally work faster in warmer conditions, but if it is too hot the enzymes can denature and stop decomposition.
2
Q
How does water affect the rate of decomposition?
A
Microorganisms grow faster in conditions with water as it is needed for respiration. Water also makes food easier to digest.
3
Q
What is the role of oxygen in decomposition?
A
Most decomposers respire aerobically.
4
Q
What happens to compost when more oxygen is available?
A
They respire aerobically, producing heat. Increased temperature increases the rate of decay so the compost is made quicker.
