PLANT PHYSIOLOGY
MINERAL NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Direct role in metabolism
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Requirement is specific
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Dispensible for growth
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Deficiency causes hunger sign
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Detailed explanation-1: -So, the correct answer is ‘Indirectly involved in plant metabolism’.
Detailed explanation-2: -Criteria For Essentiality The requirement for the element must be specific and not replaceable by another element. This means the deficiency of one element cannot be compensated by supplying any other element. The element must have a direct role in the metabolism of the plant.
Detailed explanation-3: -Iodine is not essential for plant growth.
Detailed explanation-4: -So, the correct answer is ‘Calcium’.
Detailed explanation-5: -The element along can correct the disorders produced by its absence or deficiency. <br> Hence, it is clear that an element indirectly involved in plant metabolism does not fit into criterion for essentiality of an element.