Question

all cells are surrounded by a cell membrane, which is made up of phospholipids arranged in a bilayer embedded with other molecules. the main function of the cell membrane is to control which substances enter and leave the cell. complete the paragraphs to describe how the structure of the cell membrane contributes to its function. the cell membrane is made up of a lipid bilayer, which contains layers of phospholipids. the phospholipids are arranged and large molecules to pass through them. the phospholipid membrane most charged molecules. besides phospholipids, the cell membrane also contains carbohydrates, cholesterols, and. the interaction of these molecules within the membrane is often described by scientists as a mosaic. the individual molecules in the cell membrane work together to support cell activities and regulate what enters and leaves the cell.

Explanation:

The cell - membrane's lipid bilayer has two layers of phospholipids. The hydrophobic tails face each other and the hydrophilic heads face outward. This structure restricts large and charged molecules from passing through easily. Besides phospholipids, the membrane contains proteins, and its structure is often described as a fluid - mosaic model where molecules can move laterally. Proteins help in transport, cell - signaling etc.

Answer:

The cell membrane is made up of a lipid bilayer, which contains two layers of phospholipids. The phospholipids are arranged with hydrophobic tails facing each other and hydrophilic heads facing outward, which restricts large and most charged molecules from passing through them. Besides phospholipids, the cell membrane also contains carbohydrates, cholesterol, and proteins. The interaction of these molecules within the membrane is often described by scientists as a fluid - mosaic. The individual molecules in the cell membrane work together to support cell activities and regulate what enters and leaves the cell.