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Questions and Answers
What is the primary location of ground tissue in plants?
What is the primary location of ground tissue in plants?
What is the main function of parenchyma cells in seeds?
What is the main function of parenchyma cells in seeds?
What is the role of ground tissue in plant growth?
What is the role of ground tissue in plant growth?
Which cell type is responsible for storing sugar or starch in the root system?
Which cell type is responsible for storing sugar or starch in the root system?
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What is the function of palisade mesophyll in parenchyma cells?
What is the function of palisade mesophyll in parenchyma cells?
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What is the purpose of ground tissue in aquatic plants?
What is the purpose of ground tissue in aquatic plants?
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What is the role of ground tissue in plant organs?
What is the role of ground tissue in plant organs?
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What is the primary function of collenchyma cells in a plant?
What is the primary function of collenchyma cells in a plant?
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What is the difference between sclerenchyma cells and other parenchyma cells?
What is the difference between sclerenchyma cells and other parenchyma cells?
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Where is the ground tissue system found in a plant?
Where is the ground tissue system found in a plant?
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What is the function of the endodermis in a plant's roots?
What is the function of the endodermis in a plant's roots?
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What is the primary function of the vascular tissue system in a plant?
What is the primary function of the vascular tissue system in a plant?
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What is the difference between the xylem and phloem in a plant's vascular tissue system?
What is the difference between the xylem and phloem in a plant's vascular tissue system?
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What is the function of palisade mesophyll in a plant's leaves?
What is the function of palisade mesophyll in a plant's leaves?
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What is the function of medullary rays in a plant's woody stem?
What is the function of medullary rays in a plant's woody stem?
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Study Notes
Ground Tissue Overview
- Ground tissue is the most abundant part of a plant, found within all plant organs.
- It includes underground organs (roots, tubers, rhizomes) and above-ground organs (stem, leaves, petiole, buds, flowers, fruits).
Ground Tissue Functions
- Helps plants grow, heal after injury, and produce and store food.
- Provides structural support, allowing plants to stand upright.
- Promotes buoyancy in aquatic plants.
Cell Types in Ground Tissue
- Parenchyma cells: most common, can divide into any plant cell, contain chloroplasts and palisade mesophyll for light absorption and photosynthesis.
- Collenchyma cells: have thicker cell walls, provide structural support, found in corner of angled stems or bundles of vascular tissue.
- Sclerenchyma cells: hard and tough, die at maturity, provide structural support in mature stems, source of fiber for rope and linen.
Cell Wall Characteristics
- Primary cell wall: elastic, allows cells to grow and expand.
- Secondary cell wall (in sclerenchyma cells): rigid and inflexible, contains lignin, provides structural support in trees and shrubs.
Ground Tissue System
- Found within each plant organ, consists of different types of tissue.
- In leaves: palisade mesophyll, site of photosynthesis.
- In stems: cortex (outer layer) and pith (spongy center).
- In roots: cortex (outer layer) and pith (center), facilitate storage of sugar or starch.
Additional Ground Tissue Types
- Endodermis: site where minerals and nutrients pass from soil into vascular tissue system.
- Pericycle: ring of tissue separating endodermis from vascular tissue system.
- Medullary rays: criss-cross vascular tissue, transport sap to plant's outer edge.
- Ground meristem: site of plant growth via cellular division, found in root and shoot tips.
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Description
Learn about the structure and function of ground tissue in plants, including its location and role in different plant organs. Discover the importance of ground tissue in the root and shoot systems.
