Yeah yeah so :D,
Large polar molecules can only cross the membrane with the help of protein named channel protein and carrier protein.
So, this both proteins act like a gate, the large molecules enter the protein and the protein let the large molecules in to the membrane. (see the picture so that you can understand more, its carrier protein)
the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.
I think its called an Axon.
C) The Cell Would Be Forced To Divide as substances continued to build up inside the cell
Answer:
Sunlight hits a smaller surface area at the Equator so heats up quickly compared to the poles. Explanation: