Fluid Mosaic Model of Biological Membrane

Question

The fluid mosaic model describes the biological membrane as:

Select an answer

The fluid mosaic model describes the biological membrane as:

  1. Porous protein lattice
  2. Rigid protein matrix
  3. Phospholipid bilayer, proteins — Correct Answer
  4. Single lipid layer
Explanation:
Correct Answer: A bilayer of phospholipids with embedded proteins, fluid and flexible

The Fluid Mosaic Model describes the biological membrane as a bilayer of thick lipids with hydrocarbon chains oriented inward (forming a continuous hydrophobic phase) and hydrophilic heads oriented outward. Individual lipid molecules can move laterally, making the membrane fluid, flexible, electrically resistant and relatively impermeable to highly polar molecules.

Key Features
  • Membrane proteins serve as receptors and provide selective targets for drug action.
  • Proteins can freely float through the membrane.
  • Intrinsic proteins extending through the full membrane thickness surround fine aqueous pores.
  • Biological membranes behave as lipoids punctured by aqueous pores.

📚 About this Topic — Veterinary Pharmacology and Toxicology

This multiple choice question is from Veterinary Pharmacology and Toxicology, Veterinary Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Veterinary Pharmacology and Toxicology to strengthen your preparation.

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