The cell structure responsible for determining which things can enter or leave the cell is the Cell/Plasma Membrane.
Here's why:
1. The cell membrane, also known as the plasma membrane, acts as a protective barrier around the cell, controlling what enters and exits the cell.
2. It is selectively permeable, meaning it allows certain substances to pass through while restricting the movement of others. This selectivity is crucial for maintaining internal conditions within the cell.
3. The membrane is made up of a phospholipid bilayer with embedded proteins that help in transport and communication processes.
4. Examples of substances that can pass through the cell membrane include water, oxygen, and nutrients, while larger molecules or molecules with different properties may require specific transport mechanisms.
In summary, the cell/plasma membrane plays a vital role in regulating the movement of substances into and out of the cell, ensuring proper functioning and homeostasis.
