Question

The cell envelope comprises of the

• A. Cell membrane
• B. Cell wall
• C. Capsule
• D. All of the above

Answer 1

The correct option is D All of the above

The cell envelope is a descriptive term for the several layers of material that envelope or enclose the protoplasm of the cell. The cell protoplasm (cytoplasm) is surrounded by the plasma membrane, a cell wall and a capsule. All cells have a cell membrane, which is the essential and definitive characteristic of a "cell". Almost all prokaryotes have a cell wall to prevent damage to the underlying protoplast. Outside the cell wall, foremost as a surface structure may be a polysaccharide capsule or glycocalyx.