NEET Biology question

Not in NEET syllabus

Which of the following is not a criterion for the essentiality of an element?

(A)The requirement of the element is specific
(B)It is necessary for normal growth and reproduction
(C)It is not replaceable by another element
(D)It is indirectly involved in plant metabolismCorrect

Answer: (D)

Solution

Arnon and Stout's criteria for essentiality require the element to be indispensable for normal growth/reproduction, specifically required and not replaceable by any other element, and — critically — directly (not

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Question ID VK-112959