3 - nitrogen cycle guided graphic notes
TRANSCRIPT
the process of turning nitrogen in the atmosphere into ����������������������.
nitrogen from ������������������ and ������������������ organisms is turned into ammonium by bacteria. bacteria on the roots of
some plants like ����������������� and ��������������� also can fix nitrogen from nitrogen gas in the atmosphere.
���!�����! ��%�����"��,�1�,����� !�� ��,����������! ��� ��&��,�
Nitrogen gas in the atmosphere is in a form that can�t be used by �������������������������������� �������� ���������������������
N N
lightning separates N2 into two atoms and combines it with ������������������ to form nitrates
N N
Nitrates are absorbed by plant roots and used to make ����������������������� that are eaten by animals.
soil bacteria turn nitrites into nitrates to complete����������������������������������.
soil bacteria turn nitrites
Soil bacteria change �������������������������������� into nitrites.
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Nitrate
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Nitrate
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ammonium
Nitrite
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that
N
Nitrate
some soil bacteria break down ���������������������������������� to release ���������������������� �������� back to the atmosphere.
Name ��������������������������������������������������� class ����������
bacteria nodules
some soil bacteria break down release release ���������������������� ��������back to the atmosphere. release back to the atmosphere.
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h
o o
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the process of turning nitrogen in the atmosphere into nitrates.
nitrogen from wastes and dead organisms is turned into ammonium by bacteria.
bacteria on the roots of some plants like beans and peas also can fix nitrogen from nitrogen gas in the atmosphere.
���!�����! ��%�����"��,�1�,����� !�� ��,����������! ��� ��&��,�
Nitrogen gas in the atmosphere is in a form that can�t be used by animals or plants.
N N
lightning separates N2 into two atoms and combines it with oxygen to form nitrates
N N
Nitrates are absorbed by plant roots and used to make proteins that are eaten by animals.
soil bacteria turn nitrites into nitrates to complete nitrification.
Soil bacteria change ammonium into nitrites.
N
Nitrate
N
Nitrate
n N
ammonium
Nitrite
N
N
Nitrate
some soil bacteria break down nitrates to release nitrogen gas back to the atmosphere.
Name ��������������������������������������������������� class ����������
some soil bacteria break down nitrates to release nitrogen gas release nitrogen gas back to the atmosphere.
bacteria nodules
o o
o
h
h
h
h
o o
o
o
o
o o
o