Question

Differentiate between parenchyma and collenchyma based on (a) strength (b) cytoplasm (c) cell wall.

Answer 1

Parenchyma:

1. Parenchyma are living tissues that are isodiametric(equal size in all directions).
2. They provide turgidity to the soft parts of the plants. The cells are thin and are made up of cellulose.

Collenchyma:

1. Collenchyma are living cells and are elongated in shape.
2. They provide flexibility and mechanical support to the plants.
3. The cell wall is made of cellulose and pectin.

Characteristics	Parenchyma	Collenchyma
(a) Strength	Provides turgidity to the soft parts of the plants.	Provides flexibility and mechanical strength to the plants.
(b) Cytoplasm	They have dense cytoplasm.	They contain cytoplasm.
(c) Cell wall	Cell walls are thin and are made up of cellulose.	Cell walls are thick at the corners but uneven and are made up of cellulose and pectin.