Biological membranes contain bilayers containing mostly ________.
A)phospholipids
B)oils
C)prostaglandins
D)triglycerides
E)cholesterol

Question

Quizplus · Accepted Answer

Biological membranes are composed of a phospholipid bilayer, which is made up of two layers of phospholipid molecules. The polar heads of the phospholipids face outwards towards the aqueous environment while the nonpolar tails face inwards, creating a hydrophobic core. While oils are lipids, they are not the predominant lipid in biological membranes. Prostaglandins and triglycerides are not major components of biological membranes. Cholesterol is another lipid that is present in small quantities in biological membranes, but it is not the primary component of the bilayer.

Biological Membranes Contain Bilayers Containing Mostly ________