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N2 Molecule. Nitrogen in the air is in this form
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Nitrogen in this form can not get into a food chain
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Nitrogen “fixed” by becoming part of an Ammonia molecule
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Plants love Nitrogen when it is in an ammonia molecule.
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Nitrate group NO3
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Nitrate fertilizer
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Ammonium nitrate is explosive
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Fertilizer bomb destroyed the Federal building in Oklahoma City. Killing many
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Fertilizer plant explosion
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Fertilizer plant explosion.. Texas. Many compounds with nitrogen in the molecule are unstable / dangerous.
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• IN ORDER TO ENTER A FOOD CHAIN… NITROGEN MUST BE IN THE FORM OF NITRATES OR AMMONIA.
• In other words… N2 molecules must be FIXED so the nitrogen atoms are part of NO3 or NH3 molecules
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NITROGEN being added to the food chain as part of NH3 and NO3 molecules
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• PLANTS WILL USE THE NITROGEN IN NH3 and NO3 MOLECULES.
• Plants USE NITROGEN to make …
• protein molecules.
• Protein molecules have lots of Carbon atoms, Hydrogen atoms and oxygen atoms… but
protein molecules must always contain NITROGEN atoms too.
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Nitrogen fixing bacteria cells in a root nodule.
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BOG habitat. Water leaches nitrates and ammonia out of the soil.
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Pitcher plants in bog habitat
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You might be in a bog if….
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Sundew plant: Sticky
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Stuck. Fly proteins = source of nitrogen in a nitrogen poor environment
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Digest. Absorb the nutrients
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Many species of sundew
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VENUS FLY TRAP
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More than 1 way to get nitrogen if you are a plant.
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Pitcher Plant. Big Bog, MN
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Big species of pitcher plant
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