Summary of cellular structures and organelles:
Part of cell: Structure: Function:
Cell wall Cell walls are found in plant Lends support and assists in
cells only. They consist of the shape of the plant cell
cellulose fibres for extra Offers protection against
strength and support. mechanical injury
Primary cell walls are
permeated with pectin.
Secondary cell walls are
permeated with lignin
Cell membrane Encloses the cell contents Controls what enters and
It is selectively permeable leaves the cell
Consists of 2 layers of Forms a part of the cellular
phospholipids in which immunity system
protein molecules move
around
Part of cell: Structure: Function:
Cell wall Cell walls are found in plant Lends support and assists in
cells only. They consist of the shape of the plant cell
cellulose fibres for extra Offers protection against
strength and support. mechanical injury
Primary cell walls are
permeated with pectin.
Secondary cell walls are
permeated with lignin
Cell membrane Encloses the cell contents Controls what enters and
It is selectively permeable leaves the cell
Consists of 2 layers of Forms a part of the cellular
phospholipids in which immunity system
protein molecules move
around
