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Questions and Answers
What is the main function of parenchyma?
What is the main function of parenchyma?
- Secretion
- Mechanical support
- Photosynthesis (correct)
- Storage
What is the characteristic feature of collenchymatous cells?
What is the characteristic feature of collenchymatous cells?
- Thin walls
- Thickened corners (correct)
- Round shape
- Large intercellular spaces
Which type of cell contains chloroplasts for food assimilation?
Which type of cell contains chloroplasts for food assimilation?
- Collenchyma cells (correct)
- Epidermal cells
- Sclerenchyma cells
- Parechyma cells
Where is collenchyma found in most dicotyledonous plants?
Where is collenchyma found in most dicotyledonous plants?
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What is the composition of the walls of parenchyma cells?
What is the composition of the walls of parenchyma cells?
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What is the absence of intercellular spaces a characteristic feature of?
What is the absence of intercellular spaces a characteristic feature of?
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Study Notes
Main Functions and Characteristics of Plant Cells
- Parenchyma cells primarily serve in storage, photosynthesis, and tissue repair in plants.
- Collenchymatous cells are characterized by their unevenly thickened cell walls providing flexibility and support to young plant tissues.
- Chloroplast-containing cells, primarily found in parenchyma, are responsible for photosynthesis and food assimilation in plants.
- In most dicotyledonous plants, collenchyma is typically located beneath the epidermis, especially in young stems and petioles, allowing for structural support during growth.
- Parenchyma cell walls are primarily composed of cellulose, hemicellulose, and pectin, making them relatively thin and flexible.
- Absence of intercellular spaces is a distinctive feature of sclerenchyma cells, which provide structural rigidity and strength to plants.
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Description
Test your knowledge of plant tissues with this quiz on parenchyma, collenchyma, and sclerenchyma. Learn about the characteristics and functions of these simple tissues.
