Which of the following statements about phospholipids is/are true?
I.Phospholipids contain a hydrophobic and a hydrophilic part in the molecule.
II)The polar part of the molecule is a sulfonic acid.
III)Phospholipids constitute an important part of cell membranes.
IV)Phospholipids form bilayers in water.

Question

Which of the following statements about phospholipids is/are true? 
I.Phospholipids contain a hydrophobic and a hydrophilic part in the molecule.
II)The polar part of the molecule is a sulfonic acid.
III)Phospholipids constitute an important part of cell membranes.
IV)Phospholipids form bilayers in water.

Quizplus · Accepted Answer

Option I is true as phospholipids have a hydrophilic head and a hydrophobic tail. Option II is incorrect as the polar part of the molecule is a phosphate group, not a sulfonic acid. Option III is true as phospholipids are a major component of cell membranes. Option IV is also true as phospholipids spontaneously arrange themselves in bilayers in water. Therefore, choices I, III, and IV are correct, giving us option D as the correct answer.

Which of the Following Statements About Phospholipids Is/are True