cell wall (made of cellulose)
The thick sticky layer that coats the plant's epidermal cells is known as the CUTICLE. This substance helps to keep the water level of the plant at equilibrium .
joker
XYLEM
The thick outer covering you are refering to is called the cell wall found in plant cells. I dont know why they have it I guess its just there.
sclerenchyma
the thick walls keep the cells organelles inside of the cell
so they can live
The thick sticky layer that coats the plant's epidermal cells is known as the CUTICLE. This substance helps to keep the water level of the plant at equilibrium .
Plant cells have CELL WALLs, thick protective coverings on the outside of the cell that surrounds the cell membrane.
joker
XYLEM
The thick outer covering you are refering to is called the cell wall found in plant cells. I dont know why they have it I guess its just there.
The cells depicted may be animal cells or plant cells. There would be distinguishing characteristics. Animal cells are eukaryotic and contain membrane-bound organelles. Plant cells are surrounded by a thick and rigid cell wall.
Many plant cells become dead.Sclerenchyma,collenchyma are some.
sclerenchyma
Yes they do, just about all living cells (which i can remember anyways, plants and animals included) have cell membranes
Cells of the pith of a stem generally have thick cell wall and large vacuoles. Likewise, cells of the cortex in the older parts have thick cell wall and large vacuoles.