Multiple choice

Criteria for essentiality of an element are

  1. Element must be necessary for growth

  2. Element must not be relaceable

  3. Element must be directly involved in the metabolism of the plant

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The criteria for essentiality established by Arnon and Stout include that the element must be necessary for the life cycle, not replaceable by another element, and directly involved in plant metabolism.

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