What is the most important componet of the cell membrane?
The phospholipid bilayer. This actually is the membrane part of it.
A cell membrane is generally made up of: Cholesterol - Disturbs the close packaging of the phospholipids. It helps to regulate membrane fluidity and is important for membrane stability. Glycoproteins(proteins with attached carbohydrate chains) - Play an important role in cellular recognition and the immune response, and acts as receptors for hormones and neurotansmitters. Together with glycolipids, they stabilise membrane structure. Glycolipids - Like glycoproteins, act as surface receptors and stabilise the membrane. Phospholipid bilayer…
Cells have methods other than diffusion/osmosis to move materials across the cell membrane, most of which involve membrane proteins and require the use of energy. The cell membrane also performs functions other than controlling the movement of materials into and out of the cell, and the membranes of some specialized cells have very complex functions. So we can see that the cell membrane is a very intricate and important component of the cell.
Most animal cells are contained within a cell membrane. Plant cells and most bacteria are contained within a cell wall. The differences in structure generally lend the cell wall greater structural rigidity than that of the cell membrane. On the other hand, the cell membrane allows the cell to be more deformable.
What compound composes most of the cell membrane and how is this compound suited to the function of the membrane?
1.Cell wall is found in plant cell and cell membrane is found in animal cells. 2.Cell membrane is covered by the cell wall which forms the outer most covering. 3.Cell wall is completely permeable whereas cell membrane is semi-permeable. 4.Cell wall is made up of cellulose and cell membrane is made up of lipids and proteins. 5.Cell membrane is also known as plasma lemma.