This chapter is currently out of syllabus
1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by
A
carotene
B
cytochrome
C
leghaemoglobin
D
xanthophyll.
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Minerals known to be required in large amounts for plant growth include
A
potassium, phosphorus, selenium, boron
B
magnesium, sulphur, iron, zinc
C
phosphorus, potassium, sulphur, calcium
D
calcium, magnesium, manganese, copper.
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Deficiency symptoms of nitrogen and potassium are visible first in
A
senescent leaves
B
young leaves
C
roots
D
buds.
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere?
A
Aerobic nitrate oxidation and nitrate reduction
B
Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds
C
Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes
D
Anaerobic ammonium oxidation and denitrification
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Class 12