Bozeman Biology Cell Membranes # 1 video http://bit.ly/RjqhXN 1 What is the function of the cell membrane? ___________________________________________________________________ ___________________________________________________________________ ____ 2 What are the characteristics of a phospholipid? a Structure : _____________________________________________________________ _____________________________________________________________ ______ b Charge: _____________________________________________________________ _____________________________________________________________ ______ 3 A molecule that is both hydrophilic and hydrophobic is called: _____________________________________________________________ ___ 4 What has the structure of a phospholipid got to do with the way it arranges itself in the membrane? ___________________________________________________________________ ___________________________________________________________________ ____ 5 Draw a picture of what this would look like? 6 What kinds of cells have cell membranes? ___________________________________________________________________ ___________________________________________________________________ ____ Honors Biology Mathew 1 7 Why is the membrane said to be fluid? ___________________________________________________________________ ___________________________________________________________________ ____ 8 What are the major things that the membrane is made up of? a __________________________________________________ b __________________________________________________ 9 What does the phospholipid do? ___________________________________________________________________ ___________________________________________________________________ ____ 10 What do the the proteins do? ___________________________________________________________________ ___________________________________________________________________ ____ 11 What are the two sides of the membrane? ___________________________________________________________________ ___________________________________________________________________ ____ 12 What’s a glycoprotein? ___________________________________________________________________ ___________________________________________________________________ ____ 13 Where do the characteristics of the membrane come from, and what are they? ___________________________________________________________________ ___________________________________________________________________ ____ 14 Name three ways the membrane maintains fluidity? Honors Biology Mathew 2 ___________________________________________________________________ ___________________________________________________________________ ____ 15 What kinds of materials can enter and leave the cell? ___________________________________________________________________ ___________________________________________________________________ ____ 16 How does water enter and leave the cell? Name the molecule that helps with this. ___________________________________________________________________ ___________________________________________________________________ ____ Honors Biology Mathew 3