Questions and Answers
What is the term for the outer layer of a plant root?
What is the function of the cortex in a plant root?
Stores food
Which layer surrounds the vascular tissue in roots?
What is the pericycle's role in plant roots?
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What are passage cells?
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What does primary xylem do?
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What is the function of primary phloem?
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Study Notes
Monocot Root Anatomy
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Epidermis: The outermost layer of cells that protects the root and serves as a barrier to pathogens and water loss.
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Cortex: Composed of parenchyma cells, this tissue is located between the epidermis and vascular tissue, primarily for food storage.
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Pith: Located at the center of monocot roots, made up of parenchyma cells, typically involved in storage and transport.
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Endodermis: A crucial single layer surrounding the vascular tissue, noted for having casparian strips that regulate water and solute movement into the vascular system.
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Pericycle: A layer of tissue situated between the endodermis and the phloem; it is often a single layer thick, serving as the origin point for lateral roots.
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Passage Cell: A specialized, thin-walled cell within the endodermis, facilitating the selective transport of substances into the vascular tissue.
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Primary Xylem: This tissue surrounds pith parenchyma cells in monocot roots and a select few dicots, responsible for water and nutrient transport.
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Primary Phloem: Located in discrete patches between xylem arms, this tissue conducts food and is integral to both monocot and dicot root structures.
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Description
Test your knowledge on the anatomy of monocot roots! This quiz covers the essential structures including the epidermis, cortex, endodermis, and more. Understand their functions and relationships within the root system.
