Consider the following statements. I. Macromolecules are involved in building up of plant body.
Consider the following statements.
I. Macromolecules are involved in building up of plant body.
II. Microelement potassium is involved in turgor movement.
III. Microelements become toxic if they are in excess.
IV. Macromolecules form the different constituents of protoplasm.
The incorrect statement is
(a) Only I
(b) Only II
(c) Only III
(d) Only IV
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