Cells require glucose as a source of energy to carry out life processes. large molecules like glucose cross the cell's plasma membrane by
a)
being pumped through ion channels.
b)
active transport through protein channels.
c)
passive diffusion through the lipid bilayer.
d)
facilitated diffusion through protein channels.

Answer – D. Facilitated diffusion through protein channels
 Glucose molecules are too big to pass through the plasma membrane by direct diffusion, so Glucose gains entrance into a cell by facilitated diffusion through protein channels in the plasma membrane. Since glucose moves with the concentration gradient, the built-in protein channels are only there to facilitate the movement of glucose into the cell and no energy is expended.

Yes yes yes very good

The  answer is b since it all happens under ground