StudyGuide-04-S - BOT131 Spring 2007 Sec. A-B, D-G : Dr....

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BOT131 Spring 2007 Sec. A-B, D-G :: Dr. Liang :: Study Guide 04 Page 1 of 4 KEYTERMS 01. Green algae: one of a diverse group of protists that contains the same pigments as land plants 02. Cuticle: a waxy covering over the epidermis of the aerial parts (leaves and stems) of a plant 03. Stoma (Stomata): a small pore flanked by guard cells in the epidermis; provides for gas exchange for photosynthesis 04. Gametangia: n; structure in which gametes form; antheridia and archegonia 05. Gametes: a haploid reproductive cell—that is, an egg or a sperm cell; in sexual reproduction, the union of gametes results in the formation of a zygote 06. Antheridia: a multicellular male gametangium that produces sperm cells (n) 07. Archegonia: a multicellular female gametangium that produces an egg cells (n) 08. Zygote: 2n; the diploid cell that results from the union of gametes in sexual reproduction; beginning stage of a sporophyte 09. Embryo: the female gametophyte generation in flowering plants 10. Embryophytes: all members of the plant kingdom that have an embryo phase in their life cycle; that is true for all land plants; green algae do not have embryo 11. Mitosis: the division of the cell nucleus resulting in two daughter nuclei, each with the same number of chromosomes as the parent nucleus 12. Meiosis: process in which a 2n cell undergoes successive nuclear divisions, potentially producing four n nuclei; leads to formation of spores in plants 13. Diploid cells: 2n; the condition of having two sets of chromosomes per nucleus 14. Haploid cells: n; the condition of having one set of chromosomes per nucleus 15. Centromere: a specialized region of a chromosome; at prophase, sister chromatids are joined in the vicinity of their centromeres 16. Spindle fibers: the structure consisting of mainly microtubules that provides the framework for chromosome movement during cell division 17. Homologous chromosomes: members of chromosome pair that are similar in size, shape, and genetic constitution 18. Sister chromatids: one of the two identical halves of a duplicated chromosome; the two chromatids that make up a chromosome are referred to as sister chromatids
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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-04-S - BOT131 Spring 2007 Sec. A-B, D-G : Dr....

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