Structural Support
Their main function is to give the cell toughness and strength for support. This allows plants to grow tall to obtain light energy to drive photosynthetic reactions.
Plant's physical barrier
The cell wall of plants is semipermeable meaning it only allows certain solutes and nutrients to enter the cell. However, it does not allow pathogens into the plant. This helps prevent diseases from infecting plants.
Not the Only One
Plants Cells aren't the only ones who have walls. Bacteria, Fungi and some Protozoa also have cell walls.
Cell's Dam
The Plant Cell Wall prevents the cell from bursting due to an overflow of water.
Impenetrable?
The cell wall isn't as penetrable as you think. There are small holes, called plasmodesmata, in the cell walls between plant cells. The holes allow the transfer of nutrients, waste, and ions. They also allow the cell membranes of neighboring cells to connect through these holes. One downfall is that the plants will lose large amounts of water in the middle of the day or on very hot days.
Reflection - It's very interesting that the wall can allow only certain things into the cell and out.
Citations
What is the Cell Wall made up of?
ReplyDeleteIn a plant's cell wall, it is made up of cellulose and in cell walls of protozoa or fungi, it is made up of a protein called chitin
DeleteWell written information
ReplyDeleteI like how your information is short and strait to the point.
ReplyDeleteI like how your information is short and to the point this makes it much easier to study.
ReplyDelete