compare the structural features of cell membrane and cell wall.
Answers
Cell wall and cell membrane both are constituents of a cell. The main difference between cell wall and cell membrane is, cell membrane is present in all cells but cell wall is only present in plants, bacteria, fungi and algae. It is not present in the Protozoa and animal cell. Cell wall covers the cell membrane, which is a partially permeable membrane.
Cell membrane is also known as plasma membrane or plasma lemma, cell wall is not.
Cell membrane is found in animal cells and cell wall in plant cells.
Cell wall covers the cell membrane and forms the outer covering.
Cell membrane is partially permeable but cell wall is completely permeable.
Cell membrane do not contain cellulose, cell wall does.
Cell wall is elastic, cell membrane is not.
Cell wall controls turgidity of a cell, plasma membrane does not.
Cell wall made up of peptidoglygan is present in a bacteria.
Cell wall made up of chitin is present in fungi.
Cell wall is metabolically inactive but cell membrane is metabolically active.
Cell wall protects the shape of the cell and maintains it while cell membrane protect the cytoplasm and osmotic balance in a cell.
Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection.