61. What is the function of leg haemoglobin ?
A. o protect Nif gene from the side effect of \(O_2\)
B. (b) To proctect nitrogenase from the side effect of \(O_2\)
C. To provide atmosheric \(N_2\) to Rhizobium bzcteria
D. To synthesis reduction inducing unit FAD.
Answer : Option B
62. Which inorganic substance is obtained by \(N_2\) - fraction ?
63. Formation of \(NO_2\) and \(NO_3\) from \(NH_3\) is indentified by which name ?
64. The process which release \(NA_3\) from Nitrogenous excretory waste is known as
A. Ammonification
B. Denitrification
C. Nitrification
D. Demonification
Answer : Option A
65. \(ZNO_3\rightarrow ZNO_2\rightarrow ZNO\rightarrow N_2O\rightarrow N_2\) is which process?
A. Reductive Amination
B. Ammonification
C. Denitrification
D. Nitrification
Answer : Option C
66. Due to natural lightening ...
A. Nitrate is converted into Nitride
B. \(N_2\) is converted into nitrate
C. Modify from \(ZNO_3\) to \(N_2\)
D. to increase activity of Reductive Amination
Answer : Option C
67. What is responsible for \(N_2\) fixation in Rhizobium ?
Which one is the correct statement from the given statements for Nitrogen cycle ?
(i) Amonification is the transforming process of complex organic matters into the simple organicmatters.
(ii) Nostoc converting the gaseous \(N_2\) in to -\(NO_2\)
(iii) Agrobacterium converted directly from \(NO_3\) to \(N_2\)
(iv) Psuedomonas converts \(NO_3\) into gaseous \(N_2\).
69. Select improper pair for the \(N_2\) fixation to the formation of Amino acid process.
A. FAD - Reduction inducing unit
B. Essential enzymes - Hydrogenase, Nitrogenase
C. ATP - the introduction of \(H_2\) units in a diatomic \(N_2\) unit
D. Reductive Amination - Nitrogenase.
Answer : Option D
70. Amonification is the release of \(NH_3) after the death of plants and animals and their degradation.Find the mistake in the given statement
A. Conversion of \(NH_3\) into -\(NO_2\) and - \(NO_3\) is not mentioned
B. Excretory substances of dead bodies is not mentioned.
C. Microbes responsible for degradation in the process are not mentioned
D. Release of \(NH_3\) from \(N_2\) containing substances (denitrification) is not mentioned
Answer : Option C