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Which one of the following is a wrong st...

Which one of the following is a wrong statement?

A

Root nudule forming nitrogen fixers live as aerobesunder free-living conditions.

B

Phosphorus is a constituent of cell membranes, certain nucleic acids, and all proteins.

C

Nitrosomonas and Nitrobacter are chemoautotrophs.

D

Anabaena and Nostoc are capable of fixing nitrogen in free-living state also.

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The correct Answer is:
A
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CENGAGE BIOLOGY-MINERAL NUTRITION-ARCHIVES
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  2. Companion cells are closely accociated with Or Transport of food...

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  3. Study the cycle shown in Fig. 12.7 and select the option which gives c...

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  4. Leguminous plants are able to fix atmospheric nitrogen through the pro...

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  10. For its activity, carboxypeptidase requires

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  11. For its action, nitrogenase requires

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  12. The first stable product of fixation of atmospheric nitrogen in legumi...

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  13. Deficiency symptoms of nitrogen and potassium are visible first in

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  17. During biological nitrogen fixation, inactivation of nitrogenase by ox...

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  18. Roots play insignificant role in absorption of water in

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  20. Which is essential for the growth of root tip ?

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