Which is a major function of the plasma membrane?
A)Storing calcium ions
B)Storing organic chemicals for metabolism
C)Providing genetic information
D)Generating ATP
E)Regulating the passage of molecules into and out of the cell

Question

Quizplus · Accepted Answer

The plasma membrane regulates the passage of molecules into and out of the cell, allowing some to enter while keeping others out. This function is crucial for maintaining a stable internal environment within the cell. Storing calcium ions (A) and organic chemicals for metabolism (B) are not major functions of the plasma membrane, though the membrane may play a role in transporting these substances. Providing genetic information (C) is the function of DNA within the nucleus, and generating ATP (D) is a function of the mitochondria.

Which Is a Major Function of the Plasma Membrane