Mineral Nutrition Question 38

38. Which one of the following is wrong statement?

[2012]

(a) Anabaena and Nostoc are capable of fixing nitrogen in free living state also

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

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

(d) Nitrosomonas and Nitrobacter are chemoautotrophs.

Show Answer

Answer : c

Hints & Solution

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