Question

what is the main function of a cell membrane?

Answer 1

Answer:

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell

Explanation:

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Answer 2

The cell membrane is another name for the plasma membrane. It is a membrane found in all live cells that separate the inner and exterior parts of the cell.

• The plasma membrane is made up of proteins, lipids, and carbohydrates and is fluid in nature. This layer is selectively permeable and is in charge of material regulation and transportation.
• The fluid mosaic model usually provides the structure of the plasma membrane. This is because the fluid mosaic model best represents the structure of the plasma membrane as a collection of cholesterol, carbohydrates, proteins, and phospholipids.
• Garth L. Nicolson and S.J. Singer were the first to propose it.
• Major Functions of the Plasma membrane:
• The proteins anchored in the membrane are responsible for specialised tasks such as cell-cell recognition and selective molecular transport.
• It provides protection for the cell as well as a consistent environment within the cell and serves as a shock absorber.
• It is flexible in white and red blood cells because it helps them travel through blood capillaries.
• It also maintains the cytoskeletal structure that gives a cell its shape, as well as forming a tissue with the extracellular matrix and other cells.
• The plasma membrane is the main component responsible for connecting with neighbouring cells.
• The membrane also assists the proteins in monitoring and maintaining the chemical environment within the cell, as well as in moving molecules across the membrane.