What is cork class 11?
The outer protective layer or bark of a tree is known as the cork. It is made up of dead cells. It protects the plant against mechanical injury, temperature extremes, etc. It also prevents the loss of water by evaporation.
What is cork in biology class 11?
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 a cork in science terms?
Definition. noun, plural: corks. (botany) A part of the periderm that protects the inner plant tissues from mechanical injuries, water loss, and pathogens, and comprised of cells that are dead at maturity and filled with air, tannins or resins.Jan 27, 2020
What is a cork in science?
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 cork of cell?
Cork cells are found at the periphery of roots and stems of grown plants as they increase in girth. These cells also contain a chemical named suberin in their cell walls which does not allow them to be permeable to gases and water. Functions of Cork cells: Protects plants from external injury to some extent.
What's the function of cork?
It protects the plants by acting as a cushion against any physical or mechanical injuries. It is rich in suberin, a jelly-like compound that prevents water loss from plants. It makes the plants more resistant to bacterial and fungal infections.
Where is cork cell present?
Solution : Cork cells are present as the peripheral (outer) waterproof tissues in older mature woody stems.Jun 27, 2022
What is cork tissue?
Cork tissue is also known as phellem. Cork cells are dead when mature and hence form the outer layer in stems and roots of woody plants. They are impermeable to water and gases.
What is cork in tissue?
Cork tissue is also known as phellem. Cork cells are dead when mature and hence form the outer layer in stems and roots of woody plants. They are impermeable to water and gases.
What is cork in biology?
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.
Where is cork tissue?
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.