Cell Membrane and Cell Transport

Master cell membrane transport! Learn structure, passive/active transport, osmosis & diffusion.

Parts of the Cell Membrane Use the word bank below to identify the different parts of a cell membrane. Click next to each letter to see the drop down word bank. A = Carbohydrate ChainB = Lipid TailC = Phosphate HeadD = PhospholipidE = Protein ChannelF = Phospholipid Bilayer Complete the paragraph below by clicking on each blank and choosing the correct word. Phospholipids are made up of a phosphate head and a lipid tail. The heads are hydrophilic because theylike water and the tails are hydrophobic because the repel water Match each term with its correct definition. Carbohydrate Chain Helps in cell signaling for communication Protein Allows larger molecules to pass through the cell membrane Homeostasis The equilibrium, or balance, of all molecules inside and outside the cell. Phospholipid Bilayer another term used to describe the cell (plasma membrane) Types of Transport Place the following into either active or passive transport. Each group will have 3 cards. 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. Each group will have 3 cards. 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 Protein Pumps Proteins that move molecules against the concentration gradient (low to high). Requires energy (ATP). 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 Click on each blank and choose the response that correctly completes the sentences. 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 Osmotic Solutions The arrows in the images below show the direction the water is moving. Label each image either hypotonic, hypertonic, or isotonic. Spelling counts!!! hypotonic isotonic hypertonic Vocabulary Practice Below is a column of vocabulary words for this unit. Click on the blank definition box and choose the correct definition for each term. Vocabulary Term Definition Osmosis Movement of water from a high to low concentration Passive Transport Movement of molecules from a high to low concentration that does not require ATP (energy) Active Transport Movement of molecules from a low to high concentration that does require ATP Hypertonic Solution When water leaves a cell due to higher solute (salt) concentration outside Hypotonic Solution When water enters a cell due to higher solute (salt) concentration inside Isotonic Solution When water enters and leaves a cell at equal rates