THE PLANT CELL Flashcards
cells have thin cell walls, and the protoplast is alive at maturity. They may have various functions
Parenchyma cells
Storage parenchyma
aerenchyma
stellate parenchyma
Parenchyma cells types
Chlorenchyma
Photosynthetic parenchyma cells contain chloroplasts and are general termed
Chlorenchyma
cells contain lots of amyloplasts.
Storage parenchyma
Parenchyma cells with large air spaces
aerenchyma
Highly branched parenchyma cells, with adjacent cells connected to each other by means of the branches
stellate parenchyma
are found in groups along the sides of the young stems and in the stalk or midrib of leaves
The cells are also somewhat elongated. They also have various functions although most of them function for support and for strength of a young plant or support of a leaf
Collenchyma cells
walls of Collenchyma cells
walls of these cells are unevenly thickened and the thickening occur at the corners where the cells meet.
plastid that is alive at maturity just like the parenchyma
protoplast
very thick walls and differ from the first two types of cells because these cells die at maturity
Sclerenchyma cells
Sclerenchyma cell walls are impregnated with
thick walls are impregnated with lignin
common sclerenchyma cells
fibers and sclereids or stone cells
protoplast is dead in sclerenchyma
true
these cells usually function for transport of water and for support. Some cells also protect the more delicate parts of the plant
sclerenchyma cells