The cell membrane of a nerve cell A - VCE - SSCE Biology - Question 4 - 2004 - Paper 1

The cell membrane of a nerve cell is primarily composed of phospholipids and proteins, which form a lipid bilayer. This structure is essential for maintaining cell integrity and facilitating various functions such as signaling and transport. The hydrophilic (water-attracting) phosphate heads of the phospholipids face outward, while the hydrophobic (water-repelling) tails face inward, creating a semi-permeable barrier that allows certain molecules to pass while keeping others out.