Which cellular framework is present in both prokaryotic and eukaryotic cells, providing shape and support?

The cell membrane is indeed a crucial component found in both prokaryotic and eukaryotic cells, as it serves as a protective barrier that regulates the movement of substances in and out of the cell. This semi-permeable membrane maintains the internal environment of the cell, allowing it to maintain homeostasis while providing stability and support to the cellular structure.

In prokaryotic cells, the cell membrane encompasses the cytoplasm and is integral to various metabolic processes. Eukaryotic cells also contain a cell membrane that, while performing similar functions, may be involved in more complex signaling and transport mechanisms due to the presence of various membrane proteins and organelles.

While the cell membrane plays a significant role in maintaining the cell's shape and integrity, other structures such as the cytoskeleton and cell wall are specific to certain cell types. The cytoskeleton is primarily involved in maintaining cell shape, facilitating movement, and supporting intracellular transport, but it is not found in all prokaryotic cells. The cell wall provides shape and protection to many prokaryotic and some eukaryotic cells, but it is not universally present in all eukaryotes. The capsule is primarily a feature of certain bacteria, providing additional protection and aiding