7: Membranes (part 3: The Fluid Mosaic Model) Quizellenjmchenry2020-03-20T15:22:22-04:00 Please sign up for the course before taking this quiz. All transmembrane proteins are integral proteins, but not all integral proteins are transmembrane proteins.1 True False 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. When a protein passes all the way through a membrane from one side to the other, it is called a/an1 transmembrane protein integral protein peripheral protein lipid raft Only the cells in your reproductive system have “self” ID tags.1 True False Where might you find a higher concentration of cholesterol in a membrane?1 In a lipid raft. In an oligosaccharide. In the enzyme Flippase. In a transmembrane protein. What process is the enzyme Flippase especially helpful for?1 Ion exchange. Moving lipid rafts. Endocytosis. Sending messages. What keeps transmembrane proteins in 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. “Glyco” is Greek and “sacchar” is Latin for1 "Protein" "Signal" "Big" "Sugar" Peripheral proteins1 are embedded in the membrane, all the way from one side to the other. 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 the same as integral proteins. Lipid rafts help proteins that belong together, stay together.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)
Please sign up for the course before taking this quiz. All transmembrane proteins are integral proteins, but not all integral proteins are transmembrane proteins.1 True False 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. When a protein passes all the way through a membrane from one side to the other, it is called a/an1 transmembrane protein integral protein peripheral protein lipid raft Only the cells in your reproductive system have “self” ID tags.1 True False Where might you find a higher concentration of cholesterol in a membrane?1 In a lipid raft. In an oligosaccharide. In the enzyme Flippase. In a transmembrane protein. What process is the enzyme Flippase especially helpful for?1 Ion exchange. Moving lipid rafts. Endocytosis. Sending messages. What keeps transmembrane proteins in 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. “Glyco” is Greek and “sacchar” is Latin for1 "Protein" "Signal" "Big" "Sugar" Peripheral proteins1 are embedded in the membrane, all the way from one side to the other. 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 the same as integral proteins. Lipid rafts help proteins that belong together, stay together.1 True False
