Biology Cycles in Ecosystems topic- Key Knowledge Flashcards
1
Q
Word and symbol equation for photosynthesis?
A
Carbon dioxide+water –> glucose +oxygen
6CO2 + 6H20–> C6H12O6 + 6O2
2
Q
Word and symbol equation for combustion?
A
Fuel+oxygen–> carbon dioxide+ water
Fuel+ O2–>CO2+H2O
3
Q
Word and symbol equation for respiration?
A
Glucose + oxygen –> Carbon dioxide+water
C6H12O6+ 6O2–> 6CO2+H2O
4
Q
What do nitrogen fixing bacteria in root nodules do?
A
Convert nitrogen gas to ammonia for the plant
5
Q
What do denitrifying bacteria do?
A
Convert nitrates into nitrogen gas
6
Q
What do free-living nitrogen fixing bacteria do?
A
convert nitrogen gas in soil to ammonia
7
Q
What does lightning do?
A
Converts nitrogen gas in atmosphere to different oxides of nitrogen.
