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44 Cards in this Set
- Front
- Back
PHRAGMOPLAST
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an alignment of cytoskeletal elements and Golgi-derived vesicles that forms across the midline of a dividing plant cell
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SPOROPOLLENIN
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a durable polymer that covers exposed zygotes of charophyte algae and forms the walls of plant spores, preventing them from drying out
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CUTICLE
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a waxy covering on the surface of stems and leaves that acts as an adaptation that prevents dessication in terrestrial plants
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VASCULAR TISSUE
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plant tissue consisting of cells joined into tubes that transport water and nutrients throughout the plant body
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VASCULAR PLANT
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a plant with vascular tissue; vascular plants include all living plant species except mosses, liverworts and hornworts
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BRYOPHYTE
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an informal name for a moss, liverwort or hornwort; a nonvascular plant that lives on land but lacks some of the terrestrial adaptations of vascular plants
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LYCOPHYTE
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an informal name for a member fo the phylum Lychophyta, which includes club mosses, spkek mosses and quillworts
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PTEROPHYTE
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an informal name for a member of the phylum Pterophyta, which includes ferns, horsetails and whisk ferns and their relatives
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SEEDLESS VASCULAR PLANTS
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an informal name for a plant that has vascular tissue but lacks seeds; seedless vascular plants form a paraphyletic group that includes the phyla Lycophyta and Pterophyta
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GRADE
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a group of organisms that share the same level of organizational complexity or share a key adaptation
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SEED
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an adaptation of some terrestrial plants consisting of an embryo packaged along with a store of food within a protective coat
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GYMNOSPERM
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a vascular plant that bears naked seeds-seeds not enclosed in specialized chambers
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ANGIOSPERM
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a flowering plant, which forms seeds inside a protective chamber called an ovary
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PROTONEMA
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a mass of green, branched, one-cell thick filaments produced by germinating moss spores
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GAMETOPHORE
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the mature gamete-producing structure of a moss gametophyte
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RHIZOID
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a long, tubular single cell or filament of cells that anchors bryophytes to the ground; unlike roots rhizoids are not composed of tissues, lack specialized conducting cells, and do not play a primary role in water and mineral absorption
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FOOT
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the portion of a bryophyte sporophyte that gathers sugars, amino acids, and minerals from the parent gametophyte via transfer cells
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SETA
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the elongated stalk of a bryophyte sporophyte
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CAPSULE
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the sporangium of a bryophyte
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PERISTOME
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a ring of interlocking, tooth-like structures oon the upper part of a moss capsule, often specialized for gradual spore discharge
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STOMA
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a microscopic pore surrounded by guard cells in the epidermis of leaves and stems that allow gas exchange between the environment and the interior of the plant
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PEAT
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extensive deposits of partially decayed organic material formed primarily form the wetland moss Sphagnum
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XYLEM
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vascular plant tissue consisting mainly of tubular dead cells that conduct most of the water and minerals upward from the roots to the rest of the plant
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TRACHEID
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a long, tapered water conducting cell formed int he xylem of nearly all vascular plants; functioning tracheids are no longer living
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LIGNIN
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a hard material embedded in the cellolose matrix of vascular plant cell walls that provides structural support in terrestrial species
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PHLOEM
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vascular plant tissue consisting of living cells arranged into elongated tubes that transport sugar and other organic nutrients throughout the plant
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ROOT
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an organ in vascular plants that anchors the plant and enables it to absorb water and minerals from the soil
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LEAF
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the main photosynthetic organ of vascular plants
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MICROPHYLL
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in lycophytes, a small leaf with a single unbranched vein
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MEGAPHYLL
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a leaf witha highly branched vascular system, characteristic of the vast majority of vascular plants
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SPOROPHYLL
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a modified leaf that bears sporangia and hence is specialized for reproduction
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SPOROPHYLL
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a modified leaf that bears sporangia and hence is specialized for reproduction
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SORUS
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a cluster of sporangia on a fern sporophyll; sori may be arranged in various patterns, such as parallel lines or dots, which are useful in fern identification
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SORUS
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a cluster of sporangia on a fern sporophyll; sori may be arranged in various patterns, such as parallel lines or dots, which are useful in fern identification
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STROBILUS
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the technical term for a cluster of sporophylls know commonly as a cone, found in most gymnosperms and some seedless vascular plants
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HOMOSPOROUS
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referring to a plant species that has a single kind of spore, which typically develops into a bisexual gametophyte
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STROBILUS
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the technical term for a cluster of sporophylls know commonly as a cone, found in most gymnosperms and some seedless vascular plants
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HOMOSPOROUS
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referring to a plant species that has a single kind of spore, which typically develops into a bisexual gametophyte
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HETEROSPOROUS
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referring to a plant species taht has two kinds of spores: microspores, which develop into male gametophytes and megaspores, which develop into female gametophytes
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MEGASPORE
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a spore from a heterosporous plant species that develops inot a female gametophyte
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HETEROSPOROUS
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referring to a plant species taht has two kinds of spores: microspores, which develop into male gametophytes and megaspores, which develop into female gametophytes
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MICROSPORE
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a spore from a heterosporous plant species that develops into a male gametophyte
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MEGASPORE
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a spore from a heterosporous plant species that develops inot a female gametophyte
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MICROSPORE
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a spore from a heterosporous plant species that develops into a male gametophyte
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