Cell Structure

Cell structure of wood

Main function of tree cells are To transport water and minerals up the tree

from the roots and energy rich sap down the tree from the leaves

To provide strength To store food

Hardwood Cell Structure

Hardwood Cell Structure made up of 3 cell types: Vessels Fibres Parenchyma

Hardwood Cell Structure - Vessels

Vessels are long cylindrical cells

They are joined end to end, running vertically up the tree

Function is to transport water and minerals

Hardwood Cell Structure - Fibres

Are long, thin cells They have thick cell

walls Their function is to

provide strength for the tree

Hardwood Cell Structure - Parenchyma

Are soft rectangular cells

They surround vessel cells

Their function is to store food

Softwood Cell Structure Hardwood Cell

Structure made up of 2 cell types: Tracheids Parenchyma

Softwood Cell Structure - Tracheids

Are flame shaped cells Run parallel to the

trunk and branches Have thick cell walls Function is to provide

strength and assist in the transporation of water

There cell walls contain small holes called PITS, which allow water and minerals pass from cell to cell