Answer: Option D and E.
Bacterial cell membranes contain phospholipid and proteins.
Step-by-step explanation:
Bacterial unicellular microorganisms. Bacteria cell membrane cover the whole body and it is a thin layer of about 8 nanometers thickness. The cell plasma membrane contain phospholipid and protein which serve as permeability barrier for molecules and aid in the transport of material in and out of the cell. The protein is the building block.