Cell membrane: Justify the role of cell membrane in keeping the ion content of cytoplasm constant

Cell membrane: Justify the role of cell membrane in keeping the ion content of cytoplasm constant. 

Cell Membrane: Role in Maintaining Ion Content of Cytoplasm

It regulates ion balance through selective permeability and active transport mechanisms:

1. Selective Permeability – Controls the entry and exit of ions via ion channels.

2. Active Transport – Uses ATP-driven pumps (e.g., Na⁺/K⁺ pump) to maintain ionic gradients.

3. Endocytosis & Exocytosis – Helps in bulk transport of ions and molecules.

This ensures homeostasis, preventing drastic changes in cytoplasmic ion concentration, which is crucial for cell function.