Question

question 5
1 pts
correct arrangement of phospholipids?
hydrophobic tails facing out, hydrophilic heads on inside.
single layer
hydrophilic heads on outside, hydrophobic tails on the inside.
rigid fat layer

Explanation:

Phospholipids form a bilayer. The hydrophilic (water - loving) heads interact with the aqueous environment (outside and inside the cell), while the hydrophobic (water - fearing) tails are shielded from water in the interior of the bilayer. A single layer is not the typical arrangement in biological membranes. Phospholipids are not part of a rigid fat layer; membranes have some fluidity.

Answer:

Hydrophilic heads on outside, hydrophobic tails on the inside.