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.
Manganese is absorbed in the form of
(1) Mn+
(2) Mn++
(3) Mn+++
(4) MnO
For the synthesis of Auxin and activation of carboxylase, which of the following ion is involved?
(1) Zn++
(2) Cl-
(3) Ca++
(4) Mn+
Copper is absorbed in
(1) Cupric form
(2) Cuprous form
(3) CuO
(4) Cu
Which of the following is not involved in redox reactions?
(1) Cu++
(2) Fe++
(3) Cu+
(4) Cl-
Molybdenum is not a component of
(1) Nitrogenase
(2) Nitrate Reductase
(3) Catalase
(4) Both B and C
Which of the following is not responsible for anion and cation balance?
(1) Na+
(2) K+
(3) Cl-
(4) Mo++
Which of the following is not involved in water splitting reaction of photosynthesis?
(1) Cl-
(2) Mn++
(3) Cu
(4) Both A and C
Critical concentration is the concentration of
(1) Any element below which plant growth is retarded but reproduction is not compromised
(2) Essential element below which plant growth is retarded
(3) Beneficial elements below which plant growth is retarded
(4) Beneficial elements above which plant growth is retarded
The element which is present below the critical concentration?
(1) Deficient
(2) Efficient
(3) Beneficent
(4) Sufficient