abscission zone Specialized layer of tissue that allows an organ to be shed by abscission when it is ripe or senescent. abscission Natural shedding of an organ that is mature or aged, as of a ripe fruit or an old leaf. abort To abandon development of a structure or organ. the lower surface of a lateral organ such as a leaf or petal. abaxial Surface of an organ facing away from the organ's axis, e.g. Plants that complete their life cycle in 2 yearsAxillary buds in leaf ab- Prefix meaning "position away from". Germinate, grow, flower, and produce seed in one growing season. Series of tooth like pointed teeth around the entire leaf edge Having a smooth edge with neither teeth nor lobes. Veins radiating outward from the base of the leaf. Veins run parallel to each other off of a central, perpendicular primary vein. The processes by which a plant adjust its angle to face towards the sun. Manufactures food for the plant using light energy. Thickened underground stems that store carbohydrates.įlowers with both male and female structures. Short stems that are surrounded by modified leaves called scales. Secondary roots that are generally thin, hair like, and numerous.Ībove ground roots that allow plants to climb.Īre tough and often have bark around them. In flowering plants, the lower part of a pistil that produces eggs in ovules The female reproductive part of a flower that produces seeds and consists of an ovary, style, and stigma The male reproductive structure of a flower that produces pollen and consists of an anther at the tip of a filament One of the ring or rings of the usually brightly colored, leaf-shaped parts of a flower In a flower, one of the outermost rings of modified leaves that protect the flower bud The tissue that conducts food in vascular plants The type of tissue in vascular plants that provides support and conducts water and nutrients from the roots The transfer of pollen from the male reproductive structures to the female reproductive structures of seed plants The tiny granules that contain the male gametophyte of seed plants The three groups of plants (liverworts, hornworts, and mosses) that lack specialized conducting tissues and true roots, stems, and leaves.Ī plant that has specialized tissues that conduct materials from one part of the plant to anotherĪ woody, vascular seed plant whose seeds are not enclosed by an ovary or fruitĪ flowering plant that produces seeds within a fruitĪ rootlike structure in nonvascular plants that holds the plants in place and helps plants get water and nutrientsĪ horizontal, underground stem that produces new leaves, shoots, and roots The vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves The sticking together of particles of the same substanceĪ green pigment, present in all green plantsĪn outer layer of tissue immediately below the epidermis of a stem or root The action or process of adhering to a surface or object Vascular tissue in plants that conducts water and dissolved nutrients upwardĪ straight tapering root growing vertically downward and forming the center from which subsidiary rootlets spring.įormed by thin, moderately branching roots growing from the stem The part of the pistil where pollen germinates.Ī part of a plant stem between two of the nodes from which leaves emerge. The smallest structural and functional unit of an organismĪ plastid that contains chlorophyll and in which photosynthesis takes place.Ī dense organelle present in most eukaryotic cellsĪ compound leaf that is divided into leaflets whose stems emanate from a single central pointĮach of the segments of the corolla of a flower Part of a plant stem from which one or more leaves emerge
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