Question

Lipid rafts:

a. are easily seen in living cells, but are difficult to re-create in the lab.
b. may repel some carbohydrates, but attract others.
c. are patches of cholesterol and sphingolipid that tend to float within the more fluid environment of phosphoglycerides.
d. are more disordered than the surrounding phosphoglycerides.
e. can be used to deliver certain medications.

Answer 1

Lipid rafts are patches of cholesterol and sphingolipid that float within the more fluid environment of phosphoglycerides in the cell membrane. Therefore, the correct option is C.

Step-by-step explanation:

Patches of cholesterol and sphingolipids known as lipid rafts have a tendency to float in the more fluid phosphoglyceride environment. The lipid composition of these cell membrane microdomains is different from that of the surrounding phosphoglycerides, containing larger levels of sphingolipids and cholesterol.

The raft's environment becomes less fluid and more organised as a result of this unusual makeup. Lipid rafts are essential for many biological functions, such as membrane trafficking and signal transduction. These microdomains may also play a role in the structure of membrane proteins.

Lipid rafts are important for cellular processes because of their unique lipid content and organisation, which may have consequences for medication delivery.

Therefore, the correct option is C.