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Give two main classification of plant tissues
Meristematic and Permanent
3 Types of Meristematic tissues
Apical, Intercalary and lateral
What is the role of Meristematic tissue?
It increase length and width of plant.
What kind of cytoplasm de meristematic tissues have?
Dense
What are the two types of permanent tissues?
Simple and complex
Where is apical meristem present?
Growing tip of shoot and root.
What are the two types of parenchyma?
aerenchyma and collenchyma
What are chlorenchyma tissues?
Parenchyma that contains chlorophyll and perform photosynthesis it is called chlorenchyma.
The process by which meristematic tissue form permanent tissue is called____________
differentiation
Cell wall of sclerenchyma is made up of ________
lignin
Give any 3 features of meristematic tissues
Lack vacuole, actively dividing, lack cytoplasm and prominent nucelus
Why do meristematic tissue lack vacuole?
They lack vacuoles because it provide rigidity to cell and prevent quick cell division.
Where is intercalary meristem present ?
At the base of leaves and internode
Where is lateral meristem present ?
On the side of stem and root.
What is the function of lateral meristem?
Increase the girth of stem and root
Where do you find aerenchyma and what is its function?
In aquatic plants, parenchyma has large air space to provide buoyancy to plants and exchange of gases it is called aerenchyma.
Give any 3 features of parenchyma
•It is basic (simple) type of packaging tissue.
•Has relatively unspecialised living cells.
•Thin cell wall and large intercellular spaces
between the cell.
•It store food and provide support to plant.
•Found in soft parts of plants.
Give any 3 features of collenchyma
•Contains elongated living cells irregularly thickened at the corners.
•Intercellular space is less.
•Provide flexibility and mechanical support to leaves and stem and allow easy bending without break.
Found in leaf stalks below the epidermis
Give any 3 features of sclerenchyma
•Consist of long, narrow, thick walled dead cell.
•Cell wall contains lignin which act as cement and harden them.
•Intercellular space absent.
•It provide strength and rigidity to plant and make them hard and stiff.
Give any 3 points of difference between parenchyma, collenchyma and sclerenchyma
Intercellular space, shape and size of cell, function, cells- living or dead, location