A new protein has been described that transports a growth factor across the plasma membrane.This protein is most likely a/an:

Question

Quizplus · Accepted Answer

Integral membrane proteins are embedded within the lipid bilayer and can span the entire membrane, with parts facing both the extracellular and cytoplasmic sides. Since this protein transports a growth factor across the plasma membrane, it needs to be able to interact with molecules on both sides of the membrane, making it likely to be an integral membrane protein. Peripheral membrane proteins are typically located on the cytoplasmic side of the membrane and do not span the entire membrane, making it less likely that this protein is a peripheral membrane protein. Cytoplasmic proteins are located inside the cell and do not interact with the plasma membrane directly, ruling out option D.

A New Protein Has Been Described That Transports a Growth