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>> Online-Test >> Biology >> Nitrogen Nutrition Plants
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Synonyms and Antonyms
Free Online Mock Biology Multiple Choice Test on Nitrogen Nutrition Plants
Sub Category : Nitrogen Nutrition Plants
Test : 7
Time Left :
1.
Leghemoglobin protect and activity of nitrogenase by combining with
(1) Nitrogen (2) Oxygen (3) Hydrogen (4) Carbon
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2
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4
2.
A component of plasma membrabe which picks up the molecule which is to transferred to the cell is
(1) Carrier (2) Translocase (3) Permease (4) All the above
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4
3.
The plants which have been successfully grown aeropinically
(1) Roses (2) Citrus (3) Olive (4) Both (b) and (c)
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4.
Which element make toxic effect upon the protoplasm??
(1) Arsenic (2) Mercury (3) Copper (4) All
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5.
The elements which neutralise the toxic effect of other minerals by retaining the ionic balance?
4(1) Calcium (2) Potassium (3) Magnesium (4) Calcium,Potassium,Magnesium
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4
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5
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