who care
yes
The wall is irrelevant, because it is completely permeable- water can just pass straight through it. It is only there for structural support, the cell membrane is what determines what gets in and out of the cell.
yes ------------------- Actually, that is incorrect. Most plant cells have cell walls as a distinct type of structure. Other cells including bacteria and animal cells have a cell membrane or a plasma membrane as their outer boundary.
No, only plant cells have cell walls! Animal cells have a cell membrane.
Mostly Plant cells and Bacteria, often some specialised cells will have cell walls.
yes
cell walls
No. Cell walls are a characteristic of some living things. Rocks do not live and do not have cells. Therefore they do not have cell walls.
Cells are the basic unit of structure and function in living things. All living things are made of cells. Are koala bears alive? Yes. So of coarse they are made of cells!
No because what he saw was non living cell walls were cells once lived im not sure if the cell walls could produce cells.
yes, plants have cell walls but animal cells do not.
The wall is irrelevant, because it is completely permeable- water can just pass straight through it. It is only there for structural support, the cell membrane is what determines what gets in and out of the cell.
yes ------------------- Actually, that is incorrect. Most plant cells have cell walls as a distinct type of structure. Other cells including bacteria and animal cells have a cell membrane or a plasma membrane as their outer boundary.
plant cells have cell walls
The stems of woody plants have an outer layer called bark. Bark contains layers of dead cells called cork. Plant cells have a non-living cell wall surrounding the living contents (cytoplasm, nucleus etc). The cells walls of the cork cells contain a waxy material called suberin. This is waterproof and so reduces the loss of water from the stem. However suberin also prevents the cork cells from obtaining water, so the living contents of the cells die and disintegrate, leaving the empty cell walls. So, when Hooke observed cork cells they were empty because they had lost their living contents and all he was seeing were the cell walls. For more information see: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/S/Stems.html
No, no walls will ever stop those cells.
plant cells and animal cells both have cell walls.