Which statement best explains the orientation of the phospholipid molecules in this model?

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Understand the Problem

The question is asking for an explanation regarding the orientation of phospholipid molecules in a plasma membrane model of an animal cell. It seeks the best statement that describes how these molecules are arranged in relation to internal and external environments.

Answer

B: The hydrophilic phosphate groups are attracted to the aqueous environments.

The final answer is B: The hydrophilic phosphate groups of the phospholipid molecules are attracted to the aqueous internal and external environments.

Answer for screen readers

The final answer is B: The hydrophilic phosphate groups of the phospholipid molecules are attracted to the aqueous internal and external environments.

More Information

Phospholipids form a bilayer in cell membranes, with hydrophilic 'heads' facing the watery environments inside and outside the cell, while hydrophobic 'tails' face inward, away from water.

Tips

A common mistake is confusing hydrophilic and hydrophobic portions of the phospholipid molecule.

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