Question

Phosphatidylethanolamine is concentrated in the inner leaflet of the plasma membrane and tends to promote the curvature of the membrane, which is important in _________.

1) membrane budding
2) membrane fragmentation
3) membrane fusion
4) signal transduction
5) both membrane budding and membrane fusion

Answer 1

Phosphatidylethanolamine is concentrated in the inner leaflet of the plasma membrane and promotes the curvature of the membrane, which is important in membrane budding and membrane fusion.

Step-by-step explanation:

Phosphatidylethanolamine is concentrated in the inner leaflet of the plasma membrane and tends to promote the curvature of the membrane, which is important in membrane budding and membrane fusion.

This characteristic is vital to the structure of a plasma membrane because phospholipids tend to orient themselves in a bilayer arrangement, with their hydrophobic tails facing each other and their hydrophilic heads facing out. This arrangement allows the membrane to form vesicles during membrane budding and facilitates the merging of membranes during membrane fusion.