1. Many different molecules need to pass in and out of a cellacross the cell membrane and from the outside of the body to theinside. Some of these molecules are hydrophobic and some arehydrophilic. Define these two terms and explain why they differ intheir ability to pass through cell membranes. What part of a cellmembrane makes it so tricky for some molecules to get through? Howdo these two types of molecules pass through cell membranes?
