what are living cells
The dialysis sac can be compared to the cell membrane. Both structures act as semi-permeable barriers that allow certain molecules to pass through while blocking others based on size and charge.
Dialysis tubing is often used to emulate the selective permeability of the cell membrane.
A vesicle forms as a small sac from the cell's membrane.
The dialysis tubing is meant to represent the semi permeable membrane of a cell. Like the cell membrane, dialysis tubing has holes or pores that only allow certain things to pass through. A cell membrane similarly will only allow certain things to pass in and out.
The dialysis tubing in the lab is representing the cell membrane of a cell. Like the cell membrane, the dialysis tubing is selectively permeable, allowing only certain molecules to pass through based on size and charge. This setup is used in experiments to study osmosis and diffusion, which are also important processes regulated by the cell membrane.
cell membrane
nucleus
No
It is a central vacuole.
Vesicles
During embryo sac formation in plants, the megaspore mother cell undergoes meiosis to produce four haploid cells. One of these cells develops into the embryo sac, which contains the egg cell, central cell, and other supporting cells. The embryo sac is a crucial step in the development of the female gametophyte in plants.
Vesicles