Cell wall Flashcards
Cell wall is made from
Cellulose
Structure of cell wall
-cellulose molecules held together in microfibrils which are fibres embedded in a polysaccharide matrix called pectin
Functions of the cell wall
-Transport
-Mechanical strength
-Communication between cells
Transport in a cell wall
-gaps between cellulose fibres make cell wall fully permeable to water, dissolved molecules and ions
-apoplast pathway is how water moves over a plant root
The space outside the cells in a cell wall is called the
-Apoplast
What is the apoplast pathway?
-main way that water crosses the plant root
What are the pores in the cell wall called?
-Pits
What travels through the pits?
-strands of cytoplasm called plasmodesmata
When does plasmodesma occur?
-no cellulose thickening between two cells
The strands of cytoplasm run where?
-from one cell to another
Network of cytoplasm in cells is called?
symplast
Symplast pathway is important in
-water transport through a plant
