Review of Plant Life Cycles Page 1

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1 Review of Plant Life ycles Page 1 1 In the life cycles of all plants, there is an alternation of generations. This means that haploid sporophytes make haploid spores. meiosis in sporophytes produces haploid spores. gametophytes produce spores that develop into gametes. in plants, either the gametophyte or the sporophyte is unicellular. sporophytes and gametophytes are typically similar in appearance. 2 In plants, male gametes are produced by the pistil. ovary. sporophyte. antheridium. archegonium. 3 Which of these represents the sporophyte generation of the moss life cycle? 4 In moss, produce sperm. embryos sporangia antheridia archegonia protonemata 5 The sperm produced by mosses and ferns require to reach an archegonium. wind light animals moisture the development of a flower 4/13/ :50:05 M

2 Review of Plant Life ycles Page 2 6 are examples of seedless vascular plants. Ferns Lilacs Mosses Pine trees harophyceans 7 The conspicuous stage in the life cycle of a fern plant is a diploid sorus. diploid sporophyte. haploid sporophyte. diploid gametophyte. haploid gametophyte. 8 In mosses gametes are produced by ; in ferns gametes are produced by. mitosis... mitosis mitosis... meiosis meiosis... mitosis meiosis... meiosis binary fission... mitosis 9 Which of these structures in the life cycle of a fern is diploid? 4/13/ :50:05 M

3 Review of Plant Life ycles Page 3 10 ccording to this phylogenetic tree, angiosperms are most closely related to green algae. bryophytes. gymnosperms. pteridophytes. charophyceans. 11 Which of the following is NOT associated with flowers? style hypha carpel anther stigma 12 The function of the endosperm in angiosperms is to provide nourishment for the pollen. a reward for animal pollinators. material for fruit development. material for flower development. nourishment for the developing embryo. 13 ngiosperms differ from all other plants because they produce fruits. they produce a pollen tube. they produce wind-dispersed pollen. the sporophyte generation is dominant. they use animals to disperse their seeds. 4/13/ :50:05 M

4 Review of Plant Life ycles Page 4 14 Which of these is a male gametophyte? 15 In pines, the female gametophyte contains, each of which contains a(n). antheridia... egg archegonia... egg antheridia... sperm cell archegonia... sperm cell microsporangia... egg cell 16 In pines, an embryo is a(n) seed. immature sporophyte. immature male gametophyte. immature female gametophyte. food reserve for the immature sporophyte. 17 In pine trees, pollen grains get to the ovule via the eggs. micropyle. megaspore. pollen cone. integuments. 18 Which of these statements is true about the gametophyte tissue that surrounds the pine embryo? It is the remnant of the pollen tube. It functions as a diploid food reserve. It functions as a haploid food reserve. It functions as a triploid food reserve. It develops from the fusion of a microspore and a megaspore. 4/13/ :50:05 M

5 Review of Plant Life ycles Page 5 19 Ovules are found within structure 20 Which of these is unique to flowering plants? pollen production double fertilization haploid gametophytes a dominant sporophyte generation an embryo surrounded by nutritive tissue 21 The male gametophytes of flowering plants are also referred to as endosperm. megaspores. pollen grains. embryo sacs. male sporophytes. 22 In flowering plants the integument of the ovule develops into a(n) fruit. cotyledon. seed coat. endosperm. sporophyte. 23 carpel (or pistil) is composed of stigma, style, and ovary. ovary, ovule, and anther. petal, sepal, and stamen. zygote, anther, and endosperm. ovule, megasporocyte, and anther. 4/13/ :50:05 M

6 Review of Plant Life ycles Page 6 24 stamen consists of ovary and sepal. stigma and style. stigma and anther. stigma and filament. anther and filament. 25 "Pollination" is the transfer of pollen grain to the of a flower on the same plant or another plant of the same species. style ovary stigma anther ovulate cone 4/13/ :50:05 M

7 Review of Plant Life ycles Page 7 nswer Key : Review of Plant Life ycles Question: nswer 4/13/ :50:05 M