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Why is NITROGEN Important?? Proteins and Amino Acids

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Presentation on theme: "Why is NITROGEN Important?? Proteins and Amino Acids"— Presentation transcript:

1 Why is NITROGEN Important?? Proteins and Amino Acids
Nitrogen is a KEY component in: Chlorophyll (Photosynthesis) DNA (Nucleic Acids) Proteins and Amino Acids

2 N2 The atmosphere is made up of 78% Nitrogen gas (N2)
N2 is not useable by living things N2

3 Nitrogen Containing Molecules
NITRITE (NO2-) Plants CAN’T use it AMMONIA (NH3) Some Plants CAN use it Nitrogen Containing Molecules NITROUS OXIDES (NO) Pollutants/Byproducts of burning fossil fuels NITROGEN GAS (N2) Plants CAN’T use it NITRATE (NO3-) Plants CAN use it

4 Processes that convert Nitrogen
AMMONIFICATION Nitrogen in Dead organisms & Waste converted to Ammonium -Bacteria, Decomposer, Fungi NITROGEN FIXATION Nitrogen gas (N2) is converted to AMMONIA -BACTERIA -LIGHTNING NITRIFICATION Ammonia converted into Nitrites, then Nitrates -Bacteria Processes that convert Nitrogen DENITRIFICATION Nitrates converted into N2 -Bacteria BURNING FOSSIL FUELS Creates Nitrous Oxides -Humans Fertilizer production N2 converted into Ammonia -Humans

5 Natural Fixation Human Fixation
N2 must be converted to form useable compounds. (Plants can only use Nitrogen when it’s combined with other elements) Natural Fixation Human Fixation LIGHTNING BACTERIA FERTILIZER MANUFACTURING FOSSIL FUEL COMBUSTION

6

7 NITROGEN FIXATION BACTERIA in soil and water FIX nitrogen gas from the atmosphere Nitrogen (N2) Ammonia (NH3)

8 BACTERIA ON THE ROOTS OF SOME PLANTS “FIX” NITROGEN GAS (N2).
ALFALFA BACTERIA ON THE ROOTS OF SOME PLANTS “FIX” NITROGEN GAS (N2). CLOVER PEAS LEGUMES.

9 Nitrogen gas -------------Ammonia N2 -------------NO2 and NO3
Nitrogen can be “FIXED” when we make FERTILIZERS N NH3 Nitrogen gas Ammonia Nitrogen can be “FIXED” by LIGHTNING (Energy splits N2, it reacts with O2 . Nitrates dissolve in Water absorbed by plant roots.) N NO2 and NO3 Nitrogen gas Nitrite and Nitrate

10 Process that converts AMMONIA into NITRITES and NITRATES
Done by BACTERIA NH3 Ammonia

11 NITRATE IS ABSORBED BY PLANTS’ ROOTS…

12 DENITRIFICATION-Returns Nitrogen to the atmosphere
NITRATE NITROGEN GAS (NO N2) This is the opposite of Nitrification

13 Ammonification Nitrogen in DEAD ORGANISMS and WASTE into are converted into AMMONIA

14 DENITRIFICATION FIXATION NITRIFICATION AMMONIFICATION

15 Nitrogen Cycle Video

16

17 EUTROPHICATION

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