What is protoplasm?

When a freshly collected Spirogyra filament is kept in a 10% potassium nitrate solution, it is observed that the protoplasm shrinks in size: What is this phenomenon called?

When a freshly collected Spirogyra filament is kept in a 10% potassium nitrate solution, it is observed that the protoplasm shrinks in size: What will happen if the filament is replaced in distilled water?

What is metabolism? What are its types?

Flocullation or coagulation of protoplasm is the :

Discuss mineral as important constituent of protoplasm. Discuss their role.