Question

which molecules compose the majority of the cellular membrane of all cells, and possess both hydrophilic and hydrophobic regions? (1 point)
phospholipids
proteins
carbohydrates
cholesterol

Explanation:

Phospholipids are the main component of cell - membranes. They have a hydrophilic head and a hydrophobic tail, which allows them to form a bilayer structure in an aqueous environment. Proteins, carbohydrates, and cholesterol are also present in cell membranes but do not make up the majority and do not have the same amphipathic nature as phospholipids in the context of membrane - forming.

Answer:

A. Phospholipids