The diagram shows a phospholipid molecule divided into three regions, X, Y and Z. R, in region X, represents a range of possible chemical groups.
Regions X, Y and Z affect the properties of cell surface membranes in different ways.
Which row shows the effect of each region on the properties of a cell surface membrane?
1 )
increases permeability of hydrophobic region (X) repels polar molecules (X) attracts water molecules (Y and Z)
2 )
increases permeability of hydrophobic region (Y) repels polar molecules (Y and Z) attracts water molecules (X)
increases permeability of hydrophobic region (Y and Z) repels polar molecules (X) attracts water molecules (Y and Z)
4 )
increases permeability of hydrophobic region (Z) repels polar molecules (increases permeability of hydrophobic region (Y and Z) repels polar molecules (X) attracts water molecules (Y and Z)) attracts water molecules (X)
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