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1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

A
Rhizobium
B
Frankia
C
Rhodospirillum
D
Beijerinckia
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Match Column - I with Column - II.

Column-I Column-II
(a) Nitrococcus (i) Denitrification
(b) Rhizobium (ii) Conversion of ammonia to nitrite
(c) Thiobacillus (iii) Conversion of nitrite to nitrate
(d) Nitrobacter (iv) Conversion of atmospheric nitrogen to ammonia


Choose the correct answer from options given below.
A
(a) (b) (c) (d)
(iv) (iii) (ii) (i)
B
(a) (b) (c) (d)
(ii) (iv) (i) (iii)
C
(a) (b) (c) (d)
(i) (ii) (iii) (iv)
D
(a) (b) (c) (d)
(iii) (i) (iv) (ii)
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Match the following concerning essential elements and their functions in plants

(a) Iron               (i) Photolysis of water
(b) Zinc              (ii) Pollen germination
(c) Boron            (iii) Required for chlorophyll biosynthesis
(d) Manganese    (iv) IAA biosynthesis

Select the correct option
A
(A) $$ \to $$ (iv), (B) $$ \to $$ (iii), (C) $$ \to $$ (ii), (D) $$ \to $$ (i)
B
(A) $$ \to $$ (iv), (B) $$ \to $$ (i), (C) $$ \to $$ (ii), (D) $$ \to $$ (iii)
C
(A) $$ \to $$ (iii), (B) $$ \to $$ (iv), (C) $$ \to $$ (ii), (D) $$ \to $$ (i)
D
(A) $$ \to $$ (ii), (B) $$ \to $$ (i), (C) $$ \to $$ (iv), (D) $$ \to $$ (iii)
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are
A
Ammonia alone
B
Nitrate alone
C
Ammonia and oxygen
D
Ammonia and hydrogen
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