Question

A form of iron that cannot be bound up the soil

Answer 1

Answer:

roots observe minerals nutrients has ions in a soil water some plants must have calcium to take up nitrogen and other minerals.

Hope it may helps you

Answer 2

Answer:

Iron is necessary for many enzyme to function as a catalyst for the synthesis of chlorophyll in the Nucleus . It is very essential for the young growing parts of plants because it gives strength to grow. Deficiencies of iron leads  in  pale leaf color of young leaves followed by yellowing of leaves and large veins.

So  the iron cheletes bound up the soil.