NEET 2010 Biology question

The plasma membrane consists mainly of

(1)Proteins embedded in a phospholipid bilayerCorrect
(2)Proteins embedded in a polymer of glucose molecules
(3)Proteins embedded in a carbohydrate bilayer
(4)Phospholipids embedded in protein bilayer

Answer: (1)

Solution

According to the fluid mosaic model of Singer and Nicolson, the plasma membrane is a quasi-fluid phospholipid bilayer (amphipathic lipids with hydrophilic heads outward and hydrophobic tails inward) in which peripheral and integral proteins are embedded or attached.

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Question ID VK-090558