Describe the structure of a cell wall of a xylem vessesl?

It is made of of a molecule known as cellulose. bundles of cellulose known as microfibrils are held together by hydrogen bonds and are arranged in layers in a cris-crosss/ mesh pattern. The layers are held together by the presence of pectins. the cell wall is also impregnated with lignin to prevent water loss and for structural strength. There are pits in the borders which allows for ease of transport between xylem cell.

NC

Related Biology A Level answers

All answers ▸

Describe the properties of primary protein structure.


Describe the process of synaptic transmission at the neuromuscular junction.


Explain the process of oxidative phosphorylation


Outline the circulation of blood and the physical changes of the heart during the cardiac cycle.