InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The plasma membrane consists maninly ofA. phospholipids embedded in a protein bilayerB. proteins embedded in a phospholipid bilayerC. proteins embedded in a polymer of glucoseD. proteins embedded in a carbohydrate bilayer |
|
Answer» Correct Answer - B According to fluid mosaic model given by Singer and Nicolson (1972), plasma membraneconsists of a continuous bilayer of phospholipid molecules. in which globular proteins are embedded. This arrangement corresponds to ice bergs (proteins) floating in a sea of phospholipids.Proteins stay in the membrane because they have regions of hydrophobic amino acids which interactwith fatty acid tails to exclude water. Rest of themolecule is hydrophilic, which faces into or outward, both of which are aqueous environment |
|