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