Which of the following statements is true? In the plasma membrane of cells in an epithelial sheet, membrane proteins move freely between the apical and the basal lateral surfaces. In eukaryotes, all organelles are single membraned. The hydrophobic tails of the phospholipids are buried inside the biological membranes. All membrane proteins are completely immobile and remain in a fixed position once they are inserted into a cell membrane.
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Statement 1: "In the plasma membrane of cells in an epithelial sheet, membrane proteins move freely between the apical and the basal lateral surfaces." Epithelial cells have tight junctions that separate the apical and basolateral domains of the plasma membrane. Show more…
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