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Class 11 Biology Practice Test: Mineral Nutrition - Metabolism of Nitrogen
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Class 11 Biology Practice Test: Mineral Nutrition - Metabolism of Nitrogen
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20 Questions

1. Nitrogen is a limiting nutrient for both agricultural and natural ecosystems.
2. Which microbe is capable of fixing nitrogen in non-leguminous plants?
3. Statement A: Nitrogenase is a Cu-Mn protein.
Statement B: It catalyses the conversion of atmospheric nitrogen to the form absorbed directly by plants.
4. Statement A: In reductive amination, NH4+ reacts with α-ketoglutaric acid to form asparagine.
Statement B: The process takes place in presence of glutamate dehydrogenase.
5. The form of nitrogen absorbed by plants is _________
6. The form of nitrogen absorbed by plants is _________
7. The process under which nitrogen and hydrogen combine to form ammonia under high temperature and pressure conditions is called as _________
8. In the figure given below, (C) represents __________
C represents animal biomass in given diagram
9. The process under which nitrogen and hydrogen combine to form ammonia under high temperature and pressure conditions is called as _________
10. The bacteria have to modify into rod- shaped bacterium in order to initiate division of inner cortical and pericycle cells.
11. Which is the first stable product of nitrogen fixation?
12. Enzymes for nitrogen fixation are found exclusively in eukaryotes.
13. Statement A: Nitrogenase is a Cu-Mn protein.
Statement B: It catalyses the conversion of atmospheric nitrogen to the form absorbed directly by plants.
14. N2 + A e– + A H+ + B ATP → C NH3+ H2 + D ADP + D Pi
In the equation given above, C is present in how much quantity?
15. Statement A: Nodule that arises from root hair cells contains enzyme nitrogenase.
Statement B: The nodule gets it pink color from nitrogenase.
16. The bacteria have to modify into rod- shaped bacterium in order to initiate division of inner cortical and pericycle cells.
17. Leg-haemoglobin protects nitrogenase enzyme from anaerobic conditions.
18. Which enzyme catalyses the process of transamination?
19. Which organism is capable of carrying out denitrification?
20. Statement A: Nodule formation involves a direct interaction between Rhizobium and leaves of host plant.
Statement B: The differentiation of cortical and pericycle cells lead to nodule formation.

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