Which one of the following is wrong statement

  • Option 1)

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

  • Option 2)

    Root nodule forming nitrogen fixers live as aerobes under free-living conditions.

  • Option 3)

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

  • Option 4)

    Nitrosomonas ans Nitrobacter are chemoautotrophs.

 

Answers (1)

 

Phosphorus Function -

In synthesis of nucleic acids, phospholipids, ATP, NAD, NADP, osmotic regulation and hydration, translocation of sugar, phosphorylation reactions.

- wherein

Deficiency causes mottled chlorosis, premature death, cotton rust.

 

 Phosphorus is a constituent of nucleic acids of both DNA and RNA but absent in cell membranes and cell proteins.

 

 


Option 1)

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

This is incorrect option

Option 2)

Root nodule forming nitrogen fixers live as aerobes under free-living conditions.

This is incorrect option

Option 3)

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

This is correct option

Option 4)

Nitrosomonas ans Nitrobacter are chemoautotrophs.

This is incorrect option

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