StudyGuide-06-S

StudyGuide-06-S - BOT131 Spring 2008 Sec. A-B, D-E : Dr....

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BOT131 Spring 2008 Sec. A-B, D-E :: Dr. Liang :: Study Guide 06 Page 1 of 4 KEYTERMS 01. Gymnosperm: any of a group of seed plants in which the seeds are not enclosed in an ovary 02. Angiosperm: the traditional name for flowering plants, a large, diverse, phylum of plants that form flowers for sexual reproduction and produce seeds enclosed in fruits 03. Seed : a reproductivce and dispersal unit containing embryonic sporophyte and nutritive tissue enclosed by a seed coat; exposed seeds are in gymnosperms and enclosed seeds are in angiosperms 04. Living fossil: maidenhair trees are dubbed this because we cannot find their relative 05. Conifer: any of a large phylum of gymnosperms that are woody trees and shrubs with needlelike, mostly evergreen leaves and seeds in cones 06. Pollen: the structure in seed plants that develops from a microspore into a male gametophyte 07. Tube Cell: one of the two cells in the pollen grain that grows a thin pollen tube down through the style and into an ovule in the ovary 08. Heterospory: production of two types of n spores, microspores and megaspores 09. Microspores: the n spore in heterosporous plants that gives rise to a male gametophyte; in pollen cone and makes pollen 10. Microsporocyte: the mother cell that undergoes meiosis inside the microsporangium to produce 4 spores 11. Microsporangium: located at the base of each sporophyll that contains numerous microspore mother cells; each microspore mother cell undergoes meiosis to produce four haploid microspores 12. Megaspores: the n spore in heterosporous plants that gives rise to a female gametophyte; in ovule cone and has ovule 13. Megasporocyte: the mother cell that undergoes meiosis inside the megasporangium to produce 4 spores 14. Megasporangium: two ovules in which meiosis of a megaspore mother cell that produces four haploid megaspores 15. Tetrad 16. Integument: the outer layer of an ovule that develops into a seed coat following fertilization 17. Seed Coat: encloses the seed in a tough, protective layer that is derived from the outermost layers
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This test prep was uploaded on 04/07/2008 for the course BOT 131 taught by Professor Unknown during the Spring '08 term at Miami University.

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StudyGuide-06-S - BOT131 Spring 2008 Sec. A-B, D-E : Dr....

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