Chapter_38_to_post

Chapter_38_to_post - Quiz time. 1. Molecules often pass...

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Quiz time… 1. Molecules often pass through plant membranes through special _ transport _ proteins. 2. Water potential equals _ pressure _ potential plus _ solute _ potential. 3. Most of the energy that drives the transport of water through xylem vessels ultimately comes from _ the sun _ . 4. What is the name of the cells surrounding stomata? Guard cells 5. Can minerals travel by a completely apoplastic route from the soil into the water conducting vessels of the stele? No
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Chapter 38 Flowering Plant Reproduction
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Angiosperms Meiosis Fertilization Key Haploid Diploid Sporophyte Gametophytes Fig. 30.10 Meiosis Alternation of Generations Microsporangium Megasporangium Meiosis occurs in sporangia of sporophytes Microspore Megaspore
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Angiosperms Meiosis Fertilization Key Haploid Diploid Sporophyte Gametophytes Fig. 30.10 Meiosis Alternation of Generations Microspore Megaspore Pollen Embryo sac Microsporangium Megasporangium Spores divide by mitosis and develop into mature gametophytes
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Angiosperms Meiosis Fertilization Key Haploid Diploid Sporophyte Gametophytes Fig. 30.10 Meiosis Alternation of Generations Microspore Megaspore Pollen Embryo sac Microsporangium Megasporangium Specialized gametophyte cells divide by mitosis to form gametes Egg 2 sperm
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Angiosperms Meiosis Fertilization Key Haploid Diploid Sporophyte Gametophytes Fig. 30.10 Meiosis Microspore Megaspore Pollen Embryo sac Microsporangium Megasporangium Zygote Embryo Seedling Egg 2 sperm Endosperm Alternation of Generations Gametes fuse during fertilization to produce a zygote
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A sporophytes’ male reproductive structures: Stamen Anther Filament Figs. 38.2
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A sporophytes’ male reproductive structures: Each anther contains multiple pollen sacs (microsporangia) Fig. 38.3
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A sporophytes’ male reproductive structures: Each pollen sac contains mutiple diploid microsporocytes (microspore mother cells) Fig. 38.3
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A sporophytes’ male reproductive structures: Each microsporocyte divides by meiosis to produce 4 haploid microspores Fig. 38.3
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A sporophytes’ male reproductive structures: Each microspore divides once by mitosis to form an immature male gametophyte (pollen grain) A single tube cell encloses a single generative cell Fig. 38.3
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A sporophytes’ male reproductive structures: The pollen grain matures into an adult male gametophyte when its generative cell divides by mitosis to produce two sperm The adult male gameto- phyte is a fully mature, indepen- dent plant with only 3 cells Fig. 38.3
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A sporophytes’ female reproductive structures: Carpel Stigma Style Ovary Ovule Receptacle Figs. 38.2
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Chapter_38_to_post - Quiz time. 1. Molecules often pass...

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