The following metal ion activates many enzymes participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals
A. Calcium B. Potassium C. Iron D. Copper

Correct Option B)

Solution:

Potassium ions, which are abundant in cell fluids, can activate a variety of enzymes.
They play a role in the oxidation of glucose to produce ATP, as well as the transmission of nerve signals, along with sodium ions.