Cell Membrane and Cell Transport

Please write your first and last name Use the word bank below to identify the different parts of a cell membrane A = Carbohydrate ChainB = Fatty acid tailsC = Glycerol headE = Channel proteinF = Phospholipid Bilayer Click on the blank space and choose the best word to fill in the blanks. Phospholipids are made up of a glycerol head and fatty acid tails. The heads are hydrophilic because the like water and the tails are hydrophobic because they repel water Match the part of the cell membrane with their function Carbohydrate Chain Helps identify and communicate with other cells Protein Allow for larger and polar molecules to pass through the cell membrane Cholesterol Provides stability and fluidity to the cell membrane Fluid Mosaic Model term used to describe the cell membrane since it is NOT rigid and is made of many different parts Phospholipid bilayer Allows small and nonpolar molecules to pass through the cell membrane Types of Transport Place the following into either active or passive transport Passive Transport Does not require energy Molecules move from high to low concentrations Osmosis Diffusion Facilitated diffusion Active Transport Does require energy Molecules move from a low area of concentration to a high area of concentration Active transport using pumps Endocytosis Exocytosis Match the type of transport with the appropriate definition Osmosis The movement of water across the cell membrane Diffusion The movement of substances across the phospholipid bilayer without energy Facilitated diffusion The movement of large molecules through channel or transport proteins without energy Active transport with Pumps Proteins move molecules across the membrane from low to higher concentrations. Requires energy Endocytosis A type of active transport that moves large molecules INTO the cell Exocytosis A type of active transport that moves large molecules OUT of the cell There are two types of endoycytosis. Pinocytosis is when you are moving liquids into the cell and phagocytosis is when you are moving solids into the cell