What is cork cambium How does it is responsible for secondary growth in plants?
Cork cambium (pl. cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis. It is one of the many layers of bark, between the cork and primary phloem. The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.
How is cork cambium responsible for secondary growth in plants Class 9?
Due to the cambial ring activity, the outer layers such as cortex cells and epidermis get crushed. This is the time when the cork cambium develops as a new protective layer. Cork cambium starts to differentiate cells and form outer cork (phellem) and inner secondary cortex (phelloderm).
Which tissue are responsible for secondary growth of plant in Class 9?
Vascular cambium and cork cambium, also called secondary meristem, are responsible for secondary growth in plants. They increase the thickness of the plant body.
What is cork cambium Class 9?
Cork cambium is the tissue seen in several vascular plants as a portion of the epidermis. Found between the cork and the primary phloem, it is one of the several layers of the bark. Cork cambium is the lateral meristem that is accountable for secondary growth substituting the epidermis in the roots and stems.
What do you mean by cork cambium?
The cork cambium also is a secondary meristem, containing meristematic cells. The cork cambium forms a major portion of the bark of woody plants. The secondary phloem also is part of the bark, but of course phloem is produced by the vascular cambium.
What is cork in biology class 9?
The outer protective coat of a tree is called cork. It is one of the components of tree bark. The tissues of bark become old and the secondary meristem replaces them. Cork is made up of multiple thick layers as a result of this process.
What is other name of cork cambium Class 9?
Cork cambium, also called phellogen, is another meristematic tissue developed in the cortex region. Due to the cambial ring activity, the outer layers such as cortex cells and epidermis get crushed.
What is vascular cambium Class 9?
The vascular cambium are meristematic tissues involved in the lateral growth and their continued production of the new phloem and xylem, the shoot vascular cambium in woody plants constitute the wood. An increase in the diameter results from the activity of the vascular cambium and the cork cambium.
What is a cork cambium and what does it do?
cambium, called the phellogen or cork cambium, is the source of the periderm, a protective tissue that replaces the epidermis when the secondary growth displaces, and ultimately destroys, the epidermis of the primary plant body.