Cell Membrane and Cell Transport

Parts of the Cell Membrane Use the word bank below to identify the different parts of a cell membrane A = Carbohydrate ChainB = Lipid TailC = Phosphate HeadD = PhospholipidE = ProteinF = Phospholipid Bilayer Phospholipids are made up of a phosphate head and a lipid tail. The heads are hydrophilic because the like water and the tails are hydrophobic because the repel water Match the part of the cell membrane with their function Carbohydrate Chain Helps ID the cell Protein Allow for larger molecules to pass through the cell membrane Cholesterol Provides stability 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 Types of Transport Place the following into either active or passive transport Passive Transport Does not require energy Goes with the concentration gradient Molecules move from high to low concentrations Active Transport Does require energy Moves against the concentration gradient Molecules move from a low area of concentration to a high area of concentration Place each type of transport in either passive or active transport Passive Transport Osmosis Diffusion Facilitated Diffusion Active Transport Protein pumps Endcoytosis Exocytosis Match the type of transport with the appropriate definition Osmosis The diffusion of water from an area of high concentration to an area of low concentration Diffusion The diffusion of molecules other than water from an area of high concentration to an area of low concentration Facilitated diffusion A type of diffusion that uses proteins in order to move large molecules across the cell membrane Pumps Proteins that move molecules against the concentration gradient (low to high). 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