How do large particles get into and out of cells?

Answer 1

Large particles enter and exit cells using vacuoles (enclosed spherical bodies) formed from the cells own membrane, although some of the structures within the cell can also form vacuoles for similar tasks. When a large object makes contact with the outer edge of the cell membrane, it forms a depression, which deepens until the object emerges on the inside of the cell sealed in a vacuole. The depression is sealed progressively with more cell membrane, so no "hole" is left behind. This process, also referred to as phagocytosis, is the same one white blood cells use to consume bacteria. The reverse processes (exocytosis) occurs in a similar way, but this time the vacuole merges with the inner surface of the cell membrane, and either the vacuole will cease to exist, or a new vacuole will form using the outer membrane, ensuring that a more delicate substance remains protected from its environment.

Answer 2

As you probably know the cell wall is in charge of making shur this doesn't happen, however sometimes a cell wall can fail and then SMALL particales can get through. However for larger particles they would have to be first broken down. This is done by white blood cells. It is however very rare.

Answer 3

Large particles can enter cells through endocytosis, where the cell membrane wraps around the particle and forms a vesicle to bring it inside. The particles can exit cells through exocytosis, where the vesicle containing the particles fuses with the cell membrane to release its contents outside the cell.

Answer 4

With the help of carrier transmembrane proteins. Some sorts of molecules need to be actively transported into the cell (with the use of energy) whereas others can pass right through.

Answer 5

Through a process called Exocytosis. :)