Which of the Following Statements Is TRUE Concerning the Cell

Multiple Choice

Which of the following statements is TRUE concerning the cell membrane?

A) Cholesterol within the membrane gives it added strength and flexibility.
B) Receptor molecules are embedded in the membrane for intercellular communication.
C) Carbohydrates bind to protein molecules thereby modifying the proteins function as a membrane channel.
D) Receptor molecules embedded in the membrane are involved in cellular recognition.
E) All of these statements are true of cell membranes.