The cell membrane
The cell membrane. It also allows certain things to enter and exit.
roots
Vascular tissue, bro
materials needed to plant tomatoe
The cuticle
The cell membrane. It also allows certain things to enter and exit.
roots
Cytoplasm holds all the organelles in place.
plants maybe
A plant cell membrane lines the inside of the cell wall. The membrane allows only certain molecules into the cell depending on the size. It acts as a filter, and allows food and water to enter the cell, and gets rid of wastes and un-necessary nutrients.
the cell membrane
Vascular tissue, bro
A waxy barrier in the plant root.The waxy barrier in the plant root prevents molecules that are in the cell walls from entering the xylem directly. To move into the xylem, molecules must first cross a plasma membrane and enter the cytoplasm of a root cell. This allows a plant to be selective about what enters the xylem.
Human nerve cells allows information from the brain to be carried to other parts of the body BUT plant guard cells allows the amount of oxygen to enter the stomata.
cell membrane
The cell's membrane is "selectively permeable" because the cell allows some materials to enter or leave.I'm in grade eight. This is what my Science textbook says:"Because the cell membrane allows certain substances to enter or leave, but not others, it is said to be selectively permeable."
In a plant cell, this selective barrier is known as the cell membrane but also a plant cell has a cell wall. The cell membrane is semi permeable allowing only certain materials so the cell membrane allows in materials and the cell wall ''digests it''. While in a plant cell does not have a cell wall only a cell membrane.It is the cell membrane that acts as its selective barrier.