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1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which of the following elements is a constituent of biotin?
A
Magnesium
B
Calcium
C
Phosphorus
D
Sulphur
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The first stable product of fixaation of atmospheric nitrogen in leguminous plants is
A
NO$$_3^ - $$
B
glutamate
C
NO$$_2^ - $$
D
ammonia.
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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For its action, nitrogenase requires
A
high input of energy
B
light
C
Mn2+
D
super oxygen radicals.
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Best defined function of manganese in green plants is
A
photolysis of water
B
Calvin cycle
C
nitrogen fixation
D
water absorption.

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