Question

Which of the following statement(s) is/are false regarding fluid mosaic model of cell membrane?

• A. The cell membrane is composed of lipids bilayers with the proteins floating on it
• B. The polar heads face towards the inside and the hydrophobic tails face towards the outer part
• C. Peripheral proteins lie on the surface of membrane while the integral proteins are partially or totally buried in the membrane
• D. The cell membranes also possess carbohydrate in addition to lipids and proteins

Answer 1

The correct option is B The polar heads face towards the inside and the hydrophobic tails face towards the outer part

Fluid mosaic model is purposed by Singer and Nicolson. The model explains the structure of cell membrane:

• The cell membrane is composed of lipids bilayers with the proteins floating on it, called membranous proteins.
• The polar heads of the lipid face towards the outside and the hydrophobic tails face towards the inner part.
• Membrane proteins can be classified as integral or peripheral.
• Peripheral proteins lie on the surface of membrane while the integral proteins are partially or totally buried in the membrane.
• The cell membranes also possess carbohydrate in addition to lipids and proteins.
• The lipid component of the membrane mainly consists of
  phosphoglycerides.