Cell: The Unit of Life · NEET Preparation Botany

The select permeability of the plasma membrane is primarily due to which of its components?

Practice question from Cell: The Unit of Life (NEET Preparation Botany), with the correct answer and a step-by-step solution.

medium · MCQ · Q-EC28D6

The select permeability of the plasma membrane is primarily due to which of its components?

  1. A.Extrinsic proteins
  2. B.Lipid bilayerCorrect answer
  3. C.Polysaccharide coat
  4. D.Nucleic acids

Solution

The lipid bilayer of the plasma membrane provides the primary permeability barrier. Non-polar molecules can easily pass through it, while polar molecules require carrier proteins or channels.

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