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Function of epidermis
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Outer layer of cells that surrounds the stem. Has a waxy waterproof cuticle
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Function of cortex and pith
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Ground tissue that surrounds vascular bundles
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Function of Xylem
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Transports water and ions through the plant
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Function of Phloem
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Sugar transport
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Function of guard cells and where are they located
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Change shape to open or close the pore in stomata to control gas and water transport
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What are the 3 zone in root systems and what happens in each section
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zone of cell division: contains the apical meristem, where cells divide. zone of cellular elogation: made up of cells derived from apical meristem, actively increase length.zone of celluar maturation: older cells complete differentiation into dermal, vascular, and ground tissues. epidermal cells produce root hairs to increase surface are.
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What two things make up: ground tissue, vascular tissue, and dermal tissue
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Cortex and pith. xylem and phloem. cuticle and root hairs
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What are a few differences between dicot leaves and monocot leaves
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Dicot has 2 cotyledons, branching viens. monocot has one cotyledon and parallel veins
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What makes a monocot root different from a dicot
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The xylem and phloem surround the pith in alternating bundles (circle) and it doesnt have a cuticle
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What is the function of the pericycle
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Strengthens the stem and provides protection for vascular bundles
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What is the function of the endodermis
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To prevent water and solutes from passing through
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What makes a monocot stem different from a dicot
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The vascular bundles are randomly spread out and it has no secondary growth
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Why do lawns need to be watered frequently in dry regions?
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They have shallow root systems
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What is the function of the pericycle in woody roots
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They produce the root cork cambium
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How does secondary xylem and phloem come about
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A thin layer of procambuim cells between xylem and phloem differentiate into vascular cambium
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