Which of the following statements about biological membranes

Which of the following statements about biological membranes is not true? They contain carbohydrates that are covalently bound to proteins and lipids They are very large, sheetlike structures with closed boundaries They are symmetric because of the symmetric nature of lipid bilayers They can be regarded as two-dimensional solutions of oriented proteins and lipids They contain specific proteins that medicate their distinctive functions

Solution

Answer: (C) They are symmetric because of the symmetric nature of lipid bilayers.

The above statement is not true.

Lipid bilayer membranes are asymmetric, which means the outside face of membrane is always different from the inner face of the membrane.