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  • Vascular Tissue


    Transports water, nutrients, and photosynthetic products around the plant.

  • What are the two main types of vascular tissue?


    Xylem and Phloem.

  • Xylem


    Conducts water unidirectionally from roots to shoots.

  • Phloem


    Transports sugars bidirectionally between roots and shoots.

  • What is the function of epidermal tissue?


    Protects the plant and reduces water loss through a waxy cuticle.

  • Ground Tissue


    Supports and stores essential molecules; includes parenchyma, collenchyma, and sclerenchyma cells.

  • What are tracheids?


    Long, thin water-conducting cells found in all vascular plants.

  • Vessel Elements


    Shorter, wider cells in angiosperms that conduct water more efficiently than tracheids.

  • What are sieve tube elements?


    Specialized parenchyma cells in phloem that transport sugars and other elements.

  • Companion Cells


    Support sieve tube elements both metabolically and physically.

  • What is the cuticle?


    A waxy film secreted by epidermal cells to prevent water loss.

  • Trichomes


    Hair-like structures on the epidermis that can help with water loss, defense, and sunlight reflection.

  • Pith


    Ground tissue inside the vascular bundles in plant stems.

  • Cortex


    Ground tissue outside the vascular bundles in plant stems.

  • What are parenchyma cells?


    The most abundant cells in plants, involved in healing and nutrient transport.

  • Collenchyma Cells


    Provide structural support in growing parts of the plant.

  • Sclerenchyma Cells


    Provide structural support in non-growing parts of the plant and are dead at maturity.

  • What are fibers in xylem?


    Sclerenchyma cells that provide structural support.

  • Sclerids


    Sclerenchyma cells with thick lignin walls that form protective coatings on seeds and nuts.

  • What is the function of the endodermis?


    Forms the cell boundary between the cortex and vascular tissue.

  • Pericycle


    A thin layer of tissue between the endodermis and the phloem.

  • What is the role of parenchyma cells in lateral transport?


    They transport water and nutrients laterally through the vascular tissue.

  • What are the main functions of ground tissue?


    Producing and storing important molecules for the plant.

  • What is the primary function of collenchyma cells?


    Providing structural support in growing parts of the plant.

  • What is the main difference between tracheids and vessel elements?


    Tracheids are long and thin, while vessel elements are shorter and wider.

  • What is the function of sieve plates?


    Allow transport of materials between sieve tube elements in phloem.

  • What is the role of the cuticle in plants?


    Prevents water loss by creating a hydrophobic barrier on the epidermis.

  • What are the two regions of ground tissue in stems?


    Pith and Cortex.

  • What is the primary role of sclerenchyma cells?


    Providing structural support in non-growing parts of the plant.