Class XI ยท Biology practice
Mineral Nutrition PYQs
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8 questions in this collection ยท Page 1 of 1
Mineral Nutrition
Which micronutrient is required for splitting of water molecule during photosynthesis?
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Mineral Nutrition
Which one of the following produces nitrogen fixing nodules on the roots of Alnus?
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Mineral Nutrition
Match List-I with List-II.
| List-I |
List-II |
| (A)Manganese |
(I)Activates the enzyme catalase |
| (B)Magnesium |
(II)Required for pollen germination |
| (C)Boron |
(III)Activates enzymes of respiration |
| (D)Iron |
(IV)Functions in splitting of water during photosynthesis |
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Mineral Nutrition
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 |
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Mineral Nutrition
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 |
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Mineral Nutrition
The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plants is/are:
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Mineral Nutrition
In Glycine max, the product of biological nitrogen fixation is transported from the root nodules to other parts as:
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Mineral Nutrition
Thiobacillus is a group of bacteria helpful in carrying out:
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