The nitrogen cycle by Haylin Li https://padlet.com/HaylinLi/nitrogencycle Made with a curious mind en-us 2017-10-24 02:35:32 UTC 2025-06-02 16:06:01 UTC hello@padlet.com 5. How does nitrogen enter the lithosphere? HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199835810 2017-10-24 02:44:57 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199835810 4. What role do decomposers play in the nitrogen cycle? HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199835839 2017-10-24 02:45:10 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199835839 3. Which nitrogen substance is taken up by the roots of plants? HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199835916 2017-10-24 02:45:41 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199835916 2. Why is it that plants can be short of nitrogen when the air is four-fifths nitrogens HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199835928 2017-10-24 02:45:48 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199835928 1. Suggest possible consequences of the large-scale fixing of nitrogen by industry, and the use of synthetic nitrogen compounds as fertilisers. HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199835993 2017-10-24 02:46:19 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199835993 The nitrogen cycle HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199918697 2017-10-24 11:10:12 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199918697 HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199988833 2017-10-24 14:01:38 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199988833 6. What are the similarities between nitrogen cycle and carbon cycle? HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199993414 2017-10-24 14:09:46 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199993414 7. What are the differences between nitrogen cycle and carbon cycle? HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/199993867 2017-10-24 14:10:45 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/199993867 The carbon cycle HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/200008029 2017-10-24 14:31:33 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/200008029 Question 6- Answer HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/200764383 Similarity:
Both cycles can transfer either carbon or nitrogen from the ocean to the atmosphere or vice versa.
Both undergo chemical transformation that alter the form of the molecules containing them.
Nitrogen and carbon are present in living things.
Both involves releasing the element in a molecular form into the atmosphere.
Both recycle nutrients that are essential to all organisms.
Both begin the cycle as gases and finishes as gases.


]]> 2017-10-26 12:15:40 UTC https://padlet.com/HaylinLi/nitrogencycle/wish/200764383 Question 7- Answer HaylinLi https://padlet.com/HaylinLi/nitrogencycle/wish/200764514 Differences:
Nitrogen cycle:
All organisms require nitrogen to make amino acids which in return are used to build proteins.
All stages are carried out by microorganisms whereas the fixation of carbon is done mainly by plants.
Nitrogen gas makes up 78% of the Earth’s atmosphere. Nitrogen gas is quiet abundant
The cycle starts with nitrogen-fixing bacteria, or fungi.
Nitrogen cannot be used by plants or animals in its gaseous form

Carbon cycle:
Carbon combines with oxygen (carbon dioxide) is taken in by plants during photosynthesis and released oxygen back into the air. 
Much of the carbon is released back to the atmosphere through the respiration of living things.
Does not require special processing by bacteria prior to plants and animals being able to use it. 
In human activity, when CO is released back into the atmosphere it can be harmful to the earth’s atmosphere if there’s too much and can cause the earth to warm up. This is called the greenhouse effect.

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