Mineral Nutrition

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Question

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Question 1 : In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the
1. appearance of dead necrotic tissue
2. poor development of vasculature
3. formation of anthocyanins
4. bending of leaf tip
Answer
9316

Question 2 : Function of zinc is
1. Closing of stomata
2. Biosynthesis of 3-IAA
3. Oxidation of carbohydrate
4. Synthesis of chlorophyll
Answer
9317

Question 3 : Which of the following is a group of micronutrients?
1. Fe, Mn, Cu
2. Ca, Zn, B
3. Ni, Mo, H
4. Cl, C, Ca
Answer
9318

Question 4 : The process of conversion of NO₂^– to N₂ is called
1. ammonification
2. nitrogen fixation
3. nitrification
4. denitrification
Answer
9319

Question 5 : The formation of first stable product of nitrogen fixation is catalysed by enzyme
1. nitrogenase
2. isomerase
3. dehydrogenase
4. none of these
Answer
9320