'Female gametophyte' presentation slideshows

Plantae

Plantae. Seed Plants. Vascular Plants. Formation of vascular tissue Xylem (water) Phloem (food) True leaves, roots, and stems Lignin ____________ generation dominate. Alternation of Generation. Alternation of Generation. Sporophyte dependent on gametophyte mosses

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The Evolution of Seed Plants

The Evolution of Seed Plants. The Evolution of Seed Plants. The Seed Plants The Gymnosperms: Naked Seeds The Angiosperms: Flowering Plants. The Seed Plants. The seed plants are the most recent group to appear in the evolution of the tracheophytes.

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Plants

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Evolution by Seed Plants

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Plant Reproduction

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Conifers

Conifers. BIOL 1407. Seed Plants. Vascular Tissue Produce seeds Dispersal of offspring Produce pollen Sperm transfer without water. Seed Plants. Sporophyte dominant Gametophytes Greatly reduced in size Dependent on sporophyte. Seed Plants. Heterosporous Megaspore

479 views • 28 slides

Moss Life Cycle

Moss Life Cycle. Alternation of generations. Zygote created from egg & sperm. Alternation of generations. Zygote divides by mitosis to create adult sporophyte. Alternation of generations. Haploid spores created by meiosis. Alternation of generations. Haploid spores released into air.

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13.3 Nonflowering Vascular Plants

13.3 Nonflowering Vascular Plants. Gymnosperms. Nonflowering vascular plants that produce seeds are called gymnosperms. Conebearing trees, such as pine and redwood, are the most common gymnosperms alive today.

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Seed Plants

Seed Plants. Two groups of seed plants: Gymnosperms Angiosperms Gymnosperms include the conifers and cycads and this group originated in the Carboniferous period.

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Plant Reproduction

Plant Reproduction. Chapter 31. Plants and Pollinators. Pollen had evolved by 390 million years ago Sperm packed inside a nutritious package Transferred first by wind currents Later transferred by insects Plants that attracted insect pollinators with flowers had a reproductive advantage.

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Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants. AP Biology. Seed Plants. Sporophyte dominant Being diploid allows carrying recessive alleles from one generation to the other Eventually, these recessive alleles may be selected for All heterosporous Megasporangia

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Plant Reproduction

Plant Reproduction. AP Biology Unit 5. Alternation of Generations. All land plants can exist in two different multicellular forms Sporophyte (2n) Gametophyte (n) In a life cycle, plant generations alternate between sporophyte and gametophyte Each form gives rise to the other form.

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Chapter 30 Plant Diversity II: Evolution of Seed Plants

Chapter 30 Plant Diversity II: Evolution of Seed Plants. AP Biology. Seed Plants. Sporophyte dominant Being diploid allows carrying recessive alleles from one generation to the other Eventually, these recessive alleles may be selected for All heterosporous Megasporangia

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Chapter 30 The Evolution of Seed Plants

Chapter 30 The Evolution of Seed Plants. Biology 102 Tri-County Technical College Pendleton, SC. Some Key Terms. Seed is fertilized, ripened ovule of gymnosperm or angiosperm Seed consists of an embryo, food supply, and protective seed coat Designed for dispersal by various means: Wind

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Gymnosperms

Gymnosperms. Group 3: Seed producing, Vascular Plants. Gymnosperms Seeds not covered by fruit. Group 3: Seed producing, Vascular Plants. Gymnosperms Seeds not covered by fruit Examples: Cycads. Group 3: Seed producing, Vascular Plants. Gymnosperms Seeds not covered by fruit Examples:

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Evolution of the Seed Plant

Evolution of the Seed Plant. 3 Important Adaptations. Reduction of gametophyte Advent of the seed Evolution of pollen. In seed plants, the miniature female gametophytes develop from spores that are retained with the sporangia of the parental sporophyte.

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Pre-Assessment

Pre-Assessment. http:// commons.wikimedia.org /wiki/ File:Plant.svg. Plant Reproduction Pre-Assessment. #1 In the angiosperm, the ovules become ________ at maturity. A) the megasporangium B) the female gametophyte C) the male gametophyte D) the winged seeds

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The life cycle of a moss (Bryophyta)

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Plant group: Gymnosperm Phylum Coniferophyta , Structure: pine ovulate cone

O vule eggs (n) will form inside the female gametophyte within the megaspore (n) formed by the megasporocyte (2n). Plant group: Gymnosperm Phylum Coniferophyta , Structure: pine ovulate cone.

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