How does the structure of the cell membrane relate to its function?

1 Answer
Sep 2, 2015

Answer:

The cell membrane being selectively permeable regulates the entry and exit of molecules into and out of the cell.

Explanation:

The cell membrane is also called selectively permeable membrane for the sole reason being it is selective in nature.

It forms a physical barrier and as a barrier between the cell and the external environment as it allows only selected necessary molecules to pass through it and at the same time prevents entry of unwanted / unnecessary substances.

It also regulates the entry and exit of molecules into and out of the cell.

The cell membrane permits the entry of vital molecules like

  • Water

  • Oxygen

  • amino acids

  • glucose into the cell as they are crucial for various life processes and at the same time metabolic waste products are expelled through the cell membrane.