NEET Botany
Nodule Formation
Low Priority
Consistency: 15%
Weightage: 3 / 20 Yrs
High-Yield Trend
1
2015 1
2013 1
2011 Questions 3 MCQs
01
PYQ 2011
easy
botany ID: neet-201
The function of leghemoglobin in the root nodules of legumes is:
1. oxygen removal
2. nodule differentiation
3. expression of nif gene
4. inhibition of nitrogenase activity
1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2013
easy
botany ID: neet-201
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
1. Ammonia
2. Nitrite
3. Glutamate
4.
2. Nitrite
3. Glutamate
4.
1
(1)
2
(2)
3
(3)
4
(4)
03
PYQ 2015
easy
botany ID: neet-201
During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by?
1. Leghaemoglobin
2. Xanthophylls
3. Carotene
4. Cytochrome
1
(1)
2
(2)
3
(3)
4
(4)