it controls what goes in and out of the cell like a door
Some have outer membrane, some don't. Gram positive bacteria - no outer membrane Gram negative bacteria - with outer membrane
The cell membrane, which is a lipid bilayer, will only allow some things in and allow others to go out of the cell.
Some molecules can't go through the cell membrane.
Some of the lipids found in a cell membrane include phospholipids (such as phosphatidylcholine and phosphatidylethanolamine), glycolipids, and cholesterol. These lipids play a crucial role in maintaining the structure and function of the cell membrane.
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
Yes, there is a cell membrane in a cell, however some cells do not have one.
Some have outer membrane, some don't. Gram positive bacteria - no outer membrane Gram negative bacteria - with outer membrane
Some plant cells have a cell membrane, as well as a cell wall.
the cell membrane
The cell membrane controls entry into and out of the cell. It is selectively permeable, allowing some substances to pass through while blocking others. Transport proteins and channels in the membrane facilitate the movement of specific molecules in and out of the cell.
The cell membrane, which is a lipid bilayer, will only allow some things in and allow others to go out of the cell.
protoplasm is enclosed in a skin like cell
Some molecules can't go through the cell membrane.
Some cells have glycocalyces and this then would be the outermost part of the cell for them but all cells must have a plasma membrane and therefore I think this would be the best answer to the question.
The protective barrier of a cell is its cell membrane, also known as the plasma membrane. It surrounds the cell, providing structure and separating the cell's internal environment from the external environment. The cell membrane regulates the passage of substances in and out of the cell to maintain homeostasis.
Cell Membrane
Yes, archaea have a cell membrane. The cell membrane in archaea is made up of unique lipids that are different from both bacteria and eukaryotes. This helps archaea cells to survive in extreme environments.