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