This chapter is currently out of syllabus
1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Nitrifying bacteria
A
oxidize ammonia to nitrates
B
convert free nitrogen to nitrogen compounds
C
convert proteins into ammonia
D
reduce nitrates to free nitrogen.
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The function of leghaemoglobin in the root nodules of legumes is
A
inhibition of nitrogenase activity
B
oxygen differentiation
C
nodule differentiation
D
expression of nif gene.
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following elements in plants is not remobilised?
A
Phosphorus
B
Calcium
C
Potassium
D
Sulphur
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen through the process of symbiotic nitrogen fixation. which one of the following statements is not correct during this process of nitrogen fixation?
A
Leghaemoglobin scavenges oxygen and is pinkish in colour.
B
Nodules act as sites for nitrogen fixation.
C
The enzyme nitrogenase catalyses the conversion of atmospheric N2 to NH3
D
Nitrogenase is insensitive to oxygen.
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