Nitrogen fixing bacteria in which plants………
a) beans
b) pea
c) pulses
d) both a and b
Legume plants are………….
a) beans
b) pea
c) pulses
d) both a and b
Ammonia is transform into nitrate ion and the process is called
a) ammonification
b) nitrification
c) carboxylation
d) none of these
Ammonia is available for use by plants and for transformation into……. is called nitrification
a) nitrite
b) nitrate ion
c) sodium
d) all of these
Why atmospheric nitrogen not used by organisms?
a) strong bond
b) free electrons
c) organic nitrogen
d) none of these
Explanation: This is because the strong triple bond between N atom in N2 molecules makes it restively inert
Nitrification is accomplished by..…..groups of bacteria
a) one
b) two
c) three
d) four
Explanation: one group is nitrosamines and second is nitrobacteria
