lesson 4 nutrient cycling. what you should be doing between lessons 1.completing the task given in...
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Lesson 4
Nutrient Cycling
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What you should be doing between lessons
1. Completing the task given in the lesson and if required, saving in the pupil folder or submitting to Mrs McDougall Welch.
2. Making notes and using your own study techniques to LEARN the work of the lesson. This may involve completing extra Scholar activities or producing mind maps, flashcards, summary notes.
3. Making a note of anything that you have tried to understand but cannot.You should be doing at least 1 hour of work for every hour of lessons!
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Carbon cyclecarbon dioxide
in the air
photosynthesis
consumers
respirationBurning fuels
producers
detritus
decay
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Nitrogen in the air
NITRATES
Protein in plants
Protein in animals Nitrogen in
dead bodies and wastes
eatingexcretion and
death
Decomposition by bacteria
Absorption by roots
Nitrogen Fixing by bacteria
Denitrification by bacteria
The nitrogen cycle
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Protein in plants
Protein in animals Nitrogen in
dead bodies and wastes
eatingexcretion and
death
Ammonification by bacteria and fungi
Nitrification by bacteria
Absorption by roots
DecompositionAnd nitrogen cycle
Nitrate Nitrite Ammonia
NitrobacterNitrosomonasNitrococcus
Assimilation
Nitrate gets used to make compounds in plants
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Nitrogen in the air
Nitrogen Fixing by bacteria(anaerobic)
Denitrification by bacteria(anaerobic)
Nitrogen fixing and
denitrification
Nitrate
Free livinge.g. cyanobacter
Symbiotice.g. Rhizobium
N-fixing requires the enzyme ‘nitrogenase’
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Carbon cycle
carbon dioxide in the air
photosynthesis
consumers
respirationBurning fuels
producers
detritus
decay
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Task
Read pages 10 – 13 in the Student Monograph. Also read the ‘box’ on pages 24/25.
Read the Chapter ‘Nutrient Cycling’ in the Scholar Book.1. Produce a poster detailing the nitrogen cycle.
This poster should include the chemical reactions and the names of the bacteria and processes involved. Include as much detail as possible. You may need to do a rough draft of this first. Include the information on pages 24/25.
2. Repeat for the Carbon Cycle and the Phosphorus Cycle. These are simpler and will be less involved than the Nitrogen Cycle.