(a) Study the given figure of nitrogen cycle and mention what do A, B, C, D, E represent. (b) What mil happen if step A does not occur ? (c) Write the role of N2 fixing bacteria in the - biosphere


#1

(a) Study the given figure of nitrogen cycle and mention what do A, B, C, D, E represent.
(b) What mil happen if step A does not occur ?
© Write the role of N2 fixing bacteria in the biosphere.
(d) Name two biologically important compounds that contain both O2 and N2.


#2

(a) A - Ammonification
B - Ammonia
C - Nitrites
D - Nitrates
E - Denitrification.
(b) Ammonia will not be formed.
© Nitrogen fixing bacteria converts atmospheric N2 into nitrogenous compounds.
(d) N2 is also the part of proteins and nucleic acids.