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All Physics Chemistry Botany Zoology

Language English हिंदी

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Which of the following is not involved in water splitting reaction of photosynthesis?

A. Cl- B. Mn++ C. Cu D. Both A and C

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Page number-198

12.2.2 Role of Macro and Micronutrients

Mineral Nutrition

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Critical concentration is the concentration of

A. Any element below which plant growth is retarded but reproduction is not compromised B. Essential element below which plant growth is retarded C. Beneficial elements below which plant growth is retarded D. Beneficial elements above which plant growth is retarded

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Page number-198

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The element which is present below the critical concentration?

A. Deficient B. Efficient C. Beneficent D. Sufficient

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Page number-198

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The elements which are actively mobilizable within the plants and exported to young developing tissues. The deficiency is symptom is observed in

A. Both in young and old parts B. Only in young parts C. First in old parts D. First in young parts

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Page number-198

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The deficiency symptoms of mobilizable substances appear first in Older parts because

A. In order to mobilize the elements to young part, the biomolecules of older parts are broken down B. In order to mobilize the elements the older part becomes weaker C. The work of mobilization is random and takes a lot of energy to cause it D. All of these

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Page number-198

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The deficiency symptoms of S and Ca will appear first in

A. Both in young and old parts B. Only in young parts C. First in old parts D. First in young parts

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Page number-198-199

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The deficiency symptoms of N, K, Mg are first observed in

A. Both in young and old parts B. Only in young parts C. First in old parts D. First in young parts

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Page number-198

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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Why does S and Ca deficiency not found in older parts first?

A. As they are immobilizable B. As they are very abundant in older parts C. As newer parts are already deficient D. Both A and B

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Page number-199

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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The knowledge of deficiency symptoms of mobilizable and immobilizable substances actually helps in

A. Horticulture B. Agriculture C. Both A and B D. Pisciculture

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Page number-199

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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Chlorosis is not

A. Loss of chlorophyll B. Leading to yellowing of leaves C. Deficiency of elements N, K, Mg, S, Fe, Mn, Zn and Mo D. Accumulation of mutated chlorophyll

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Explanation

Page number-199

12.2.3 Deficiency Symptoms of Essential Elements

Mineral Nutrition

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