Question

Please complete the following sentence.

Membrane rafts are

a. depleted in cholesterol, sphingolipids, and GPI-linked proteins. The bilayer is thicker in the raft domains than in the surrounding membrane.

b. depleted in cholesterol, sphingolipids, and GPI-linked proteins. The bilayer is thinner in the raft domains than in the surrounding membrane.

c. rich in cholesterol, sphingolipids, and GPI-linked proteins. The bilayer is thicker in the raft domains than in the surrounding membrane.

d. rich in cholesterol, sphingolipids, and GPI-linked proteins. The bilayer is thinner in the raft domains than in the surrounding membrane.

Answer 1

c. rich in cholesterol, sphingolipids, and GPI-linked proteins. The bilayer is thicker in the raft domains than in the surrounding membrane.

Step-by-step explanation:

Membrane rafts (or lipid rafts) are sections of a celular membrane. They help compartmentalize certain cellular processes.

As the lipid part of its name implies, they are enriched in cholesterol, sphingolipids and GPI-linked proteins. Because it is enriched in such species, it is also thicker than in the surrounding membrane.