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Biology 123: Chapter 38: Angiosperm Reproduction and Biotechnology Flashcards

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3825776328Flowers are the reproductive shoots of the angiosperm sporophyte; they attach to a part of the stem called thereceptable0
3825778356Flowers consist of four floral organs:carpels, stamens, petals, and sepals1
3825781641what three things make up the carpelstigma, style, ovary2
3825781642what things make up the stamenanther and filament3
3825788332A carpel has a long _____ with a _____ on which pollen may landstyle stigma4
3825791397At the base of the style is an _____ containing one or more _____ovary ovules5
3825793227A single carpel or group of fused carpels is called apistil6
3825794923A stamen consists of a filament topped by an _____ with pollen sacs that produce pollenanther7
3825865554what kind of flowers contain all four floral organscomplete flowers8
3825868943what kind of flowers lack one or moe floral organs (stamens or carpels)incomplete flowers9
3825884466what are clusters of flowers calledinflorescences10
3825949530what is the female gametophyte that develops within the ovuleembryo sac11
3825964290consists of the two-celled male gametophyte and the spore wallpollen grain12
3825966561Pollen develops from _____ within the microsporangia, or pollen sacs, of anthersmicrospores13
3826033398In angiosperms, ______is the transfer of pollen from an anther to a stigmapollination14
3826082786After landing on a receptive stigma, a pollen grain produces a _____ that grows down into the ovary and discharges two sperm cells near the embryo sacpollen tube15
3826084850the fusion of gametes, occurs after the two sperm reach the female gametophytefertilization16
3826095038One sperm fertilizes the egg, and the other combines with the two polar nuclei, giving rise to the triploid food-storing_______. This double fertilization ensures that endosperm only develops in ovules containing fertilized eggsendosperm17
3826175272mature ovary of a flowerflower18
3826185486develop from a single or several fused carpelssimple fruits19
3826185487result from a single flower with multiple separate carpelsaggregate fruits20
3826187210develop from a group of flowers called an inflorescencemultiple fruits21
3826189436contains other floral parts in addition to ovariesaccessory fruit22
3826199756separation of a parent plant into parts that develop into whole plants, is a very common type of asexual reproductionfragmentation23
3826203187the asexual production of seeds from a diploid cellapomixis24
3826205972Asexual reproduction is also called _______ _______ because progeny arise from mature vegetative fragmentsvegetative reproduction25
3826227650species have staminate and carpellate flowers on separate plantsdioecious26
3826230448plant's ability to reject its own pollenself-incompatibility27
3826251149those that can divide and asexually generate a clone of the original organism, are common in plantstotipotent28
3826255085mass of dividing, undifferentiated totipotent cells that forms where a stem is cut and produces adventitious rootscallus29
3826265374______ organisms are those that have been engineered to express a gene from another speciestransgenic30
3826269547_____ are fuelds derived from living biomassbiofuels31
3826273575____ is the total mass of organic matter in a group of organismsbiomass32
3826091279One sperm fertilizes the egg, and the other combines with the two polar nuclei, giving rise to the triploid food-storing_______. This double33

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