What is the difference between parenchyma and collenchyma?

Answer 1

PARENCHYMA:

1) the tissue consists of thin-walled living cells.

2) it is distributed in almost all the parts of the plant body .

3) the living cells of parenchyma assimilate and store food .They also store waste products.

4) It contain dense cytoplasm.

5) Intercellular spaces may or may not be present.

COLLENCHYMA:

1)the tissue consists of cells having localized thickening in their cell walls

2)it occurs mostly in the aerial parts of the plants restricted to the other layers

3)collenchyma is the chief mechanical tissue of the young parts of the plant particularly in the young dicotyledonous stems. in parenchyma cells are thin walled having intercellular spaces.and in collenchyma cells are thick walled having the absence of intercellular spaces.

4) It contain cellulose and pectin.

5) Intercellular spaces are totally absent.

6) Collenchyma is present in peripheral regions.

Answer 2

collenchyma are present in young stems ,as young stems have to grow they lack secondary walls...but they do have angular thickening in their primary walls to provide support...contrary to this scelerenchyma cells are present in mature plants they are thick and have secondary cell walls..they provide support to the plant parts....collenchyma are converted to sclerenchyma...

Answer 3

Parenchyma is the primary tissue of higher plants. Its cells are thin-walled and are capable of cell division, even when mature. Chlorenchyma is a type of parenchyma that contains chloroplasts, It is found in leaves, where photosynthesis occurs..

Answer 4

The cell walls of parenchyma cells remain uniformly thin all along. In collenchyma cell walls at the corners get suberized and become thick to provide more regidity and strength to this tissue.