carbon and nitrogen cycle Flashcards
what is respiration
a process that adds carbon to the atmosphere which animals and plants carryout
respiration word equation
oxygen + glucose -> carbon dioxide + water
respiration symbol equation
6O2 + C6H12O6 -> 6CO2 + 6H2O
what is combustion
a chemical reaction, also known as burning that releases carbon dioxide into the atmosphere
combustion word equation
fuel + oxygen -> carbon dioxide + water
what is photosynthesis
a process that removes carbon from the atmosphere which plants and algae carry out
photosynthesis word equation
carbon dioxide + water -> oxygen + glucose
photosynthesis symbol equation
6CO2 + 6H2O -> 6O2 + C6H12O6
what is feeding
how carbon is passed from plants to animals.
what are fossil fuels
a store of carbon formed when dead plants and animals get buried for millions of years
what is the atmosphere
a store of carbon that is added to when fuels are burned or living things carry out respiration
what are plants + algae
a store of carbon that is added to when photosynthesis takes place
what is decomposition (carbon cycle)
when complex, carbon compounds in dead organisms, urea and faeces are broken down into simpler carbon compounds by bacteria or fungi
what is feeding and assimilation
pass nitrogen atoms already in organic compounds
what is decomposition (nitrogen cycle)
produces ammonia from the nitrogen in compounds like proteins, DNA and vitamins