3. Why are ions important to metabolism?

Ions play an important role in the metabolism of all organisms as  reflected by the wide variety of chemical reactions in which take part.

Explanation:

Ions are cofactors of enzymes, catalyzing basic functions such as electron transport, redox reactions, and energy metabolism.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.