Based on the fluid mosaic model of cell membranes,which of the following statements about membrane phospholipids is true?

Question

Quizplus · Accepted Answer

According to the fluid mosaic model, membrane phospholipids are able to move laterally within the plane of the membrane. This lateral movement allows for the membrane to be dynamic and adaptable to changes in the environment. However, phospholipids do not frequently flip-flop between sides of the membrane, as it is energetically unfavorable. The membrane is also not an uninterrupted bilayer, as it contains various membrane proteins integrated into the phospholipid bilayer. Finally, phospholipids do not leave the bilayer and dissolve in the surrounding solution, as they are amphipathic molecules that are oriented with their hydrophilic heads facing outward towards the aqueous solutions and their hydrophobic tails facing inward towards the membrane interior.

Based on the Fluid Mosaic Model of Cell Membranes,which of the Following