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