Because the apical parts in plants have meristematic cells without differentiation into permanent cells. Also apical buds having active cell division have lesser quantity of growth promoting hormones like IAA and cytokinins etc.
These regions, where cells continuously divide, are where plant growth originates.
To divide by mitosis and produce new cells which will then differentiate into various new specialised tissues.
The growth in plants takes place in root and shoot apices. Some intercallary meristem cells also divide and add to growth.
Cells in a multi-cellular organism are usually not dramatically effected by that organism's growth. They will continue to grow until they are large enough where they need to divide. This process will always continue. In humans, when we have growth-spurts as children and young adults, are bodies release chemicals that tell our cells to reproduce faster.
meristematic tissue (:
These regions, where cells continuously divide, are where plant growth originates.
it doesn't plant's get thicker with time.
To divide by mitosis and produce new cells which will then differentiate into various new specialised tissues.
These regions, where cells continuously divide, are where plant growth originates.
The growth in plants takes place in root and shoot apices. Some intercallary meristem cells also divide and add to growth.
Cells divide very rapidly at root and shoot apices
It form into two different cells
Apical meristem is found at the tip of the root and shoot and is made of cells that divide at a rapid pace. The apical meristem helps the plant to grow up above the soil and down into the ground. This growth is called primary growth.
Cells in a multi-cellular organism are usually not dramatically effected by that organism's growth. They will continue to grow until they are large enough where they need to divide. This process will always continue. In humans, when we have growth-spurts as children and young adults, are bodies release chemicals that tell our cells to reproduce faster.
meristematic tissue (:
transformed cell lines divide more rapidly and do not require attachment to surface for growth, the loose contact inhibition, when reintroduced to animals may form tumours
plant and animal cells