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What is the role of collenchyma tissue in plants?
Collenchyma tissue acts as a protective measure for plants, protecting them against the tearing effect of wind and saving the leaves. It also provides plant parts with mechanical strength and elasticity. In addition, collenchyma with chloroplasts can perform photosynthesis.
What are the characteristics of collenchyma tissue?
The cells of collenchyma are living and thick-walled due to the deposition of cellulose, pectin, and hemicellulose mainly at the corners. The cells have no intercellular spaces. Collenchyma tissue is made up of elongated cells that appear oval, spherical, or polygonal in shape in the transverse section.
What is the function of sclerenchyma tissue in plants?
Sclerenchyma tissue provides mechanical support and rigidity to the plant. The thick walls of the cells, made of lignin, cellulose, or both, contribute to this support.
What are the two types of sclerenchyma tissue?
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What are the characteristics of sclerenchyma tissue?
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Study Notes
Collenchyma
- Cells are living and thick-walled due to the deposition of cellulose, pectin, and hemicellulose at the corners.
- Cells have no intercellular spaces.
- Cells are elongated and appear oval, spherical, or polygonal in shape in transverse section.
- Provides mechanical strength and elasticity to plant parts.
- Acts as a protective measure against wind and tearing effects.
- Collenchyma cells with chloroplasts perform photosynthesis.
Sclerenchyma
- Cells are dead, lacking protoplast, and have a hard and rigid texture.
- Cells are long, narrow, and have thick walls due to lignin deposition.
- Provides mechanical support and rigidity to the plant.
- Thickenings occur due to the deposition of lignin, cellulose, or both.
- Sclerenchyma is of two types: Sclerenchyma fibres and Sclereids.
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Description
Test your knowledge on Collenchyma tissue! This quiz will challenge you to identify the characteristics and functions of this important plant tissue, including its cell structure, cell wall composition, and protective role in plants. Perfect for botany enthusiasts and biology students.
