Nutrient Cycling

Question 1

What are the 6 processes involved In the Carbon Cyle

Answer 1

-Photosynthesis
-Respiration
-Feeding
-Decomposition
-Fossilisation
-Combustion

Question 2

What is carbon essential for the formation of?

Answer 2

-Carbohydrates- respiration
-Proteins- cell membranes/ proteins
-Lipids- Cell membranes
-Nucleic Acids- DNA/ RNA

Question 3

wHAT IS NITROGEN ESSENTIAL FOR THE FORMATION OF

Answer 3

-pROTEINS
-nITROGENOUS BASES IN NUCLEIC ACIDS dna AND rna
-atp

Question 4

wHAT IS DECOMPOSITION

Answer 4

-Decomposers are responsbile for the onversion of organic nitrogen compounds into nitrates
-Involves two stages

Question 5

What is ammonification

Answer 5

-Decomposers covert organic nitrogen compounds into ammonia/ ammonium ions
-process aided by detritivores as they feed on the dead material and break it into smaller pieces- distribute it throughout the soil

Question 6

What is Nitrification

Answer 6

A two stage conversion of ammonium ions into nitrates

1. Ammonium ions into nitrites
2. Nitrites into nitrates

-Process involves oxidation- aerobic process

Question 7

What is denitrification

Answer 7

-Not beneficial to farmers
-Covert nitrates into gaseous nitrogen- return to atmosphere
-carried out by anaerobic bateria
-anaerobic conditions- found in waterlogged soild where denitrifying bateria thrive
-prpcess reduces soil fertility
-Detritivores, eg earthworms, aerate the soil (add oxygen), as they burrow through the soil- help drain the soil- reducing activity of denitrifying bateria

Question 8

What is the only process and bacteria that requires anaerobic conditions

Answer 8

-Denitrification/ denitrifying bacteria