Question

Copper is absorbed by plants in ............ form

Answer 1

The copper ions are first converted from the double positively charged cupric to the single positively charged cuprous form, which is essential for the following absorption in the plant. So copper is taken up as Cu2+ (cupric ion).

Copper is also a component of enzymes, some of which are important to lignin formation in cell walls. It is also involved in photosynthesis, respiration, and processes within the plant involving nitrogen.

So the answer is 'Cu2+ (cupric ion)'.