Term
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Definition
| an organ that consumes or stores sugar. Phloem flows toward this. |
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Term
| companion (transfer) cell |
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Definition
| actively accumulate sugar (along with sieve tubes) Transfer cells have ingrowths of their wall that increase surface area for movement of solutes from apoplast to symplast |
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Term
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Definition
| the process which converts atmospheric nitrogen into ammonia |
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Term
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Definition
| an enzyme complex that reduces N2 by adding H+ and electrons to form ammonia |
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Term
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Definition
| root swellings which occur in the plants of the legume family. They're composed of plant cells with nitrogen fixing bacteria |
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Term
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Definition
| The symbiotic relationship between roots and fungi. Fungus receives food from teh plant and provides a larger surface area to the plant. |
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Term
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Definition
| The multicellular diploid form in organisms undergoing alternation of generations |
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Term
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Definition
| multicellular haploid male and female gametophytes which produce gametes by mitosis |
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Term
| alternation of generations |
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Definition
| alternating cycles between sporophite and gametophyte stage |
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Term
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Definition
| enclose and protect unopened flower buds |
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Term
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Definition
| consits of a filament and an anther |
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Term
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Definition
| consists of a sticky stigma at the top of a slender style |
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Term
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Definition
| the sperm producing male gametophyte surrounded by a spore wall |
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Term
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Definition
| egg producing female gametophyte |
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Term
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Definition
| the transfer of pollen from an anther to stigma |
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Term
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Definition
| food storing tissue which develops from the triploid nucleus |
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Term
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Definition
| one sperm fertilizes the egg to form the zygote and the other combines with the polar nuclei to form a triploid nucleus |
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Term
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Definition
| protection and dispersal of seeds. Develops from flower ovaries |
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Term
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Definition
| the absorption of water by dry seeds |
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Term
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Definition
| aka asexual reproduction, which is when plants produce genetically identical copies of themselves |
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Term
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Definition
| chemical signal that cordinates the parts of an organism |
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Term
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Definition
| when shoots grow towards the light |
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Term
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Definition
| substance that stimulates elongation of coleoptiles. Synthesized in the apical meristems of a shoot towards light |
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Term
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Definition
| hormone that stimulates cytokinesis |
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Term
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Definition
| hormone that stimulates growth in leaves and stems |
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Term
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Definition
| a hormone that slows down growth |
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Term
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Definition
| gas which plants make in response to stress |
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Term
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Definition
| roots exhibit positive, stems exhibit negative |
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Term
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Definition
| a physiological response to seasonal events in the life cycle of plant |
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Term
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Definition
| plants that flower when day is a spefic length or shorter |
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Term
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Definition
| plants that flower when day is longer than certain hours |
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Term
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Definition
| photoreceptor involved in de-etiolation and is located in the cytosol |
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