These molecules need to pass through specific proteins or transmembrane proteins embedded in the cell membrane. A specific type of an integral membrane protein.
The blank can be correctly filled with transmembrane proteins.
Transmembrane proteins, as the name suggests, are the proteins present across the phospholipid bilayer
These proteins form channels or pumps across the plasma membrane and help in the transport of charged ions and large biomolecules across the plasma membrane.
For example, GLUT transporter helps in the transportation of glucose.
