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