Within an animal cell, the most abundant inorganic constituent

Within an animal cell, the most abundant inorganic constituent of protoplasm is

  1. phosphate
  2. water
  3. sodium and potassium salt
  4. iron

Answer

Protoplasm is the living content of a cell that is surrounded by a cell or plasma membrane. About 80% of inorganic material in the cell contains water.

The correct option is B.