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| A nonconductive cell adjacent to a sieve tube member that doesn't lose its nucleus and controls the activity of the sieve tube. Actively loads and unloades sugar from the sieve tube. |
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| A tubelike structure that allows the flow of phloem sap from the site of photosynthesis to the rest of the plant. |
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| A plant system that contains the stems, leaves and all other above ground modifications of those plant structures. |
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| Thin extensions of root epidermal cells that act to increase surface area of the root to maximize absorption of water and dissolved minerals. |
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| A plant organ that functions in anchoring the plant to the soil, absorbs water and minerals, and may store excess sugar. |
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| A protective layer of cells beneath the roots apicap meristem. Secretes a polysaccharide slime. |
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| The most significant transport protein in plant cells the uses ATP to move hydrogen ions against the gradient. |
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| A vascular tissue in plants composed of living cells at maturity and is designed to carry sugars from the source to the sink. |
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| A sterile motified leaf that serves to attract animal pollinators to the flower. |
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| Includes all roots and other below ground structures. Functions to anchor the plant, aborb water and minerals, and store excess food. |
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| The ground tissue layer in leaves between the upper and lower epidermis. |
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| Any growth of new tissue at the node of a stem where new branching can occur and is usually dormant in a young shoot. |
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| The region of active mitosis in a plant concentrated near the tips of the roots and the shoots resulting in primary growth. |
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| All of the female reproductive structures in a flower: stigma, style and ovary. |
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| All tissues that lay outsid eof the vascular cambium in a woody plant including the secondary phloem and periderm. |
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| The protective coat that surrounds angiosperms seeds. It's formed from the integuments of the ovule. |
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| The area of active mitosis in woody plants next to the length of the stem where primary growth has stopped and results in secondary growth. |
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| Roots arisen from the pericycle of established roots and that branch horizontally from the tap root. Increases surface area. |
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| Is comprised of the outer covering of the plant in either the epidermis or periderm. |
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| A female reproductive structure within the ovary that creates the megaspore through meiosis. |
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| Is comprised of elongated, tubular cells designed for the transport of material throughout a plant. |
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| The entire male reproductive structure of the flower. Includes: filament and anther. |
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| Holds up photosynthetic leaves towards the sun. Contains vascular tissue and consists of alternating nodes and internodes. |
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| Pores colleted on the underside of many plant leaves that allow for gas exchange and transpiration. Regulated by guard cells. |
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| Any new tissue growth at the terminal end of a shoot and is active is young shoots. |
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| The reproductive structure in angiosperms consisting of the: stamen, carpel, petals and sepals. |
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| Two cells that flank each stoma and regulate gas exchange and transpiration. Potassium actively entires the cell with water causing the cell to because turgid opening the stoma. |
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| A tissue making up the majority of the body body. Assists in storage, storage and metabolism. |
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| A tubelike structure made of vessels aligned end to end. Allows water to flow along with dissolved minerals through a plant. |
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| Comprised of vascular tissue in plants these cells are dead at maturity. Their function is to to transport water and dissolved materials throughout the plant. |
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