7: Membranes (part 3: The Fluid Mosaic Model) Quizellenjmchenry2022-09-06T14:36:36-04:00 Please sign up for the course before taking this quiz. Lipid rafts help proteins that belong together, stay together.1 True False All transmembrane proteins are integral proteins, but not all integral proteins are transmembrane proteins.1 True False “Oligo” is Greek for:1 few long many short 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 are anchored in by many other proteins. They have a large hydrophilic region in their middle. Where might you find a higher concentration of cholesterol in a membrane?1 In a lipid raft. In the enzyme Flippase. In an oligosaccharide. In a transmembrane protein. “Glyco” is Greek and “sacchar” is Latin for1 "Sugar" "Protein" "Signal" "Big" Which layer of the membrane has more phospholipid molecules in it?1 outer layer inner layer What process is the enzyme Flippase especially helpful for?1 Ion exchange. Endocytosis. Sending messages. Moving lipid rafts. Only the cells in your reproductive system have “self” ID tags.1 True False What is the job of the enzyme Flippase?1 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. Turns the hydrophobic tails towards the outside of the membrane. When a protein passes all the way through a membrane from one side to the other, it is called a/an1 peripheral protein lipid raft integral protein transmembrane protein Peripheral proteins1 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. are embedded in a membrane, but don't go all the way through 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)
