Iron is not associated with

(1) absorbed in the form of ferric ions

(2) It activates Catalase enzyme

(3) It is essential for the formation of chlorophyll

(4) It is not a part of protein.

(1) Mn⁺

(2) Mn⁺⁺

(3) Mn⁺⁺⁺

(4) MnO

(1) Ca⁺⁺

(2) Zn⁺⁺

(3) Mn⁺⁺

(4) Oxygen

(1) Splitting of water to liberate oxygen

(2) Transfer of electrones through z scheme

(3) Cyclic Phosphorespiration

(4) Photorespiration

(1) Zn++

(2) Cl-

(3) Ca++

(4) Mn+

(1) Cupric form

(2) Cuprous form

(3) CuO

(4) Cu

(1) Cu⁺⁺

(2) Fe⁺⁺

(3) Cu⁺

(4) Cl^-

(1) B

(2) Cl^-

(3) Mo

(4) Cu

1. Membrane functioning, utilization of Ca++

2. Pollen germination, uptake of Ca++

3. Cell elongation, catalase activation

4. Cell differentiation, carbohydrate translocation

(1) Nitrogenase

(2) Nitrate Reductase

(3) Catalase

(4) Both 1 and 2