7: Membranes (part 3: The Fluid Mosaic Model) Quizellenj2026-01-13T14:07:01-05:00 Please sign up for the course before taking this quiz. 1. “Glyco” is Greek and “sacchar” is Latin for1 "Protein" "Sugar" "Signal" "Big" 2. What is the job of the enzyme Flippase?1 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. turns transmembrane proteins upside down. 3. 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 peripheral protein integral protein 4. What keeps transmembrane proteins bound to the membrane?1 They are anchored in by many other proteins. 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. 5. Lipid rafts help proteins that belong together, stay together.1 True False 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 process is the enzyme Flippase especially helpful for?1 Ion exchange. Sending messages. Endocytosis. Moving lipid rafts. 8. “Oligo” is Greek for:1 short many few long 9. Where might you find a higher concentration of cholesterol in a membrane?1 In a transmembrane protein. In an oligosaccharide. In the enzyme Flippase. In a lipid raft. 10. Which layer of the membrane has more phospholipid molecules in it?1 outer layer inner layer 11. Only the cells in your reproductive system have “self” ID tags.1 True False 12. All transmembrane proteins are integral proteins, but not all integral proteins are transmembrane proteins.1 True False 6: Membranes (part 2: Membrane Transport) 8: Proteins (part 1: Amino acids) Back to: 7: Membranes (part 3: The Fluid Mosaic Model)
