7: Membranes (part 3: The Fluid Mosaic Model) Quizellenj2022-11-23T15:37:01-05:00 Please sign up for the course before taking this quiz. 1. Peripheral proteins1 are embedded in the membrane, all the way from one side to the other. are the same as integral proteins. are embedded in a membrane, but don't go all the way through from one side to the other. don't go inside the membrane. 2. Only the cells in your reproductive system have “self” ID tags.1 True False 3. What is the job of the enzyme Flippase?1 turns transmembrane proteins upside down. moves a phospholipid from one side of the bilayer to the other. turns the hydrophobic tails towards the outside of the membrane. takes two phospholipids and has them trade places. 4. What keeps transmembrane proteins bound to the membrane?1 They are anchored in by many other proteins. They have a hydrophobic region in their middle. They have a large hydrophilic region in their middle. They have an ionic charge that is attracted to the phospholipid tails. 5. Where might you find a higher concentration of cholesterol in a membrane?1 In a transmembrane protein. In an oligosaccharide. In a lipid raft. In the enzyme Flippase. 6. All transmembrane proteins are integral proteins, but not all integral proteins are transmembrane proteins.1 True False 7. What process is the enzyme Flippase especially helpful for?1 Ion exchange. Endocytosis. Sending messages. Moving lipid rafts. 8. Lipid rafts help proteins that belong together, stay together.1 True False 9. “Glyco” is Greek and “sacchar” is Latin for1 "Big" "Sugar" "Signal" "Protein" 10. “Oligo” is Greek for:1 few long many short 11. Which layer of the membrane has more phospholipid molecules in it?1 outer layer inner layer 12. When a protein passes all the way through a membrane from one side to the other, it is called a/an1 peripheral protein transmembrane protein integral protein lipid raft 6: Membranes (part 2: Membrane Transport) 8: Proteins (part 1: Amino acids) Back to: 7: Membranes (part 3: The Fluid Mosaic Model)
