Question

One of the following is not a criterion for determining the essentiality of an element. Choose the one.

• A. The element is required for normal growth and reproduction.
• B. The element is distributed in all parts of the plants body equally.
• C. The element is specific and not replaceable by another.
• D. The element play a direct role in plant metabolism.

Answer 1

The correct option is B The element is distributed in all parts of the plants body equally.

The creteria for essentiality of an element are:

• The elements must be very much required for normal growth and development of plants but not necessarily distributed equally in all parts of the plant.
• The requirement of the element is very specific and cannot be replaced by another element.
• The element must play a direct and important role in plant metabolism.