Final answer:
The cell membrane does not store genetic information; this is the function of the cell's nucleus. Instead, the cell membrane regulates molecule passage, provides a barrier, is flexible, and contains markers for cell recognition.
Step-by-step explanation:
The correct answer to the question of which among the listed options is NOT a function of the cell membrane is (D) Storing genetic information. The primary functions of the cell membrane include regulating the entry and exit of molecules, providing a physical barrier between the cell and its environment, and, in the case of nerve cells, generating and transmitting electrical signals. Storing genetic information is a function of the cell's nucleus, where the DNA is located, not the plasma membrane.
The plasma membrane's roles indeed involve enclosing the cytoplasm, protection and support of the cell, and selectively allowing substances in and out (selective permeability). It offers a degree of flexibility to facilitate the movement of cells, especially in narrow spaces such as capillaries. Moreover, it possesses markers for cellular recognition, integral for developmental processes and immune responses. Notably, while the plasma membrane is associated with a multitude of vital cellular functions, it does not serve as a storage site for genetic material.