Water, Biomolecules and Cell Membrane Transport, biology homework help

Water, Biomolecules and Cell Membrane Transport

Describe the structure and function of the cell membrane and how it serves as both as a barrier to and a transporter of molecules entering and leaving the cell. Include in your answer:

a. the nature of water and the solubility of hydrophobic and hydrophilic molecules

b. the molecular structure of the cell membrane, with special reference to functions of proteins and phospholipids

c. the structures and processes that either prevent or allow passage of molecules through the membrane

d. a description of the special case of sodium-coupled transport