Question

Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.

Answer 1

Hint: Plants are the important producer of the food to its own or to the other organisms that depend on them. The cells of the plants are eukaryotic in nature with a prominent nucleus and the definite cell organelles in them. They also have a well-developed cell wall around them.

Complete answer:
The cells in the plants are classified into parenchyma, collenchyma and the sclerenchyma cells.

Characteristics	Parenchyma	Collenchyma	Sclerenchyma
Occurrence	These are living cells found in the young and the soft parts in the plant body.	They are living cells found in the leaves, petioles and in the parts of young stems.	They are dead cells present only in the matured parts.
Cell wall	They possess very thin cell walls around them.	They have thick cell walls but it is irregular in nature.	They have both thick and regular cell walls.
Nature	They are unspecialized in nature.	These cells are specialized cells.	These are also specialized cells.
Intercellular space	Space is present between the cells.	They have only little intercellular spaces.	They do not have any intercellular spaces and are hard in nature.
Functions	They undergo photosynthesis, store the prepared food and are also useful in the process of gaseous exchange.	Does not undergo photosynthesis but provides flexibility and mechanical support to the plants against the wind or etc.	Gives mechanical strength to the plants and are useful in the transportation of food and water through xylem and phloem.
Made of	It is made up of cellulose.	It is made up of cellulose and pectin.	It is made up of lignin.
Diagram

Note: Examples for the parenchyma cells are in the fruit, leaves, petioles, seeds etc. The collenchyma cells are located in the young part of the step and can break with the small amount of force. The example of sclerenchyma cells are the stem regions at the base and are very hard to break.