Question

Differentiate perachyma and collenchya

Answer 1

Explanation:

Difference # Parenchyma:

1. The cell wall is commonly thin but uniform in thickness.

2. It provides mechanical strength only when the cells are fully turgid.

3. Parenchyma is found in both the outer and inner parts of plant organs.

4. It does not have a high refractive index.

5. It shows several types of modifications.

6. It occurs in both primary and secondary structures of plants.

Difference # Collenchyma:

1. The cell walls develop extra thickenings at places (tangential walls, angles or adjacent to intercellular spaces).

2. Collenchyma is a living mechanical tissue.

3. Collenchyma is mostly restricted to the sub-epidermal parts of aerial plant organs.

4. It usually has high refractive index.

5. Modifications are very few.

6. It occurs in only aerial primary body parts of the plants.

Answer 2

Answer:

Parenchyma↙️↙️

• The cells of Parenchyma have thin walls
• The wall is made of cellulose
• There is intercellular Space between cells.

Collenchyma↙️↙️

• The cells of Collenchyma have thick walls
• The wall is made of pectin and hemicellulose
• There is less space present between cells.

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