Which of the following is essential mineral element and is not a const – McqOptions

MCQOPTIONS

1.	Which of the following is essential mineral element and is not a constituent of any enzyme but stimulate the activity of many enzymes [CBSE PMT 1989; BHU 1994]
A.	Zn
B.	Mg
C.	Mn
D.	K
Answer» E.

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