Cell+Walls

= **Plant’s Cell Wall** = = **[|Sync.in]** =

What if you wanted to enter a plant’s cell?

Entering a plant’s cell is a bit difficult. First you must pass through the cell wall. The cell wall is a rigid layer of non-living material that surrounds the cells of plants and some other organisms. The cell wall is made of a tough, yet flexible, material called cellulose. If you think of a wooden desk, you will have a good idea of what cellulose is. Wood contains a lot of cellulose.

The cells of plants and some other organisms have cell walls. In contrast, the cells of animals and some other organisms lack cell walls. A plant’s cell wall helps to protect and support the cell. In woody plants, the cell walls are very rigid. This is why giant redwood trees can stand so tall. Each cell wall in the tree adds strength to the tree. Although the cell wall is stiff, many materials, including water and oxygen, can pass through the cell wall quite easily. So sail on through the cell wall and enter the cell.

[|Cell Rap]

[|Flash Cards]