Five Statements About Cell Membranes Are Given

question 23

Multiple Choice

Five statements about cell membranes are given.Which statement provides evidence supporting the fluid nature of the cell membrane?

• A) Some membrane proteins are anchored to other molecules inside or outside the cell, while others are not.
• B) The inner and outer surfaces of a biological membrane are often quite different in terms of the molecular structures they display.
• C) A phospholipid molecule can move from one end of a bacterial cell to the other in one second.
• D) Cell membranes from different cells have widely different lipid and cholesterol compositions.
• E) Analysis of the genes present in many eukaryotes has revealed that membrane proteins account for about 25 percent of the total number of genes.

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Definitions:

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