In biological membranes, the phospholipids are arranged in a _______, with the _______.
A) bilayer; fatty acids pointing toward each other
B) bilayer; fatty acids facing outward
C) single layer; fatty acids facing the interior of the cell
D) single layer; phosphorus-containing region facing the interior of the cell
E) bilayer; phosphorus groups in the interior of the membrane

Question

Quizplus · Accepted Answer

Phospholipids are arranged in a bilayer, with the hydrophobic fatty acid tails facing each other and the hydrophilic phosphate heads facing towards the exterior and interior of the cell. This arrangement creates a selectively permeable membrane, where certain molecules can pass through while others cannot.

In Biological Membranes, the Phospholipids Are Arranged in a _______