Required Lifecycles and Other Important Diagrams Charts Instructor Thomas Carlson Bio 1B Plant Fungi Section 1 Life Cycles Required for Bio 1B Plant Fungi Midterm Exam Required Life Cycles Basidiomycete Fungal Life Cycle Fig 31 19 31 5 Clamydomonas unicellular Green Algae Life Cycle Fig 28 22 has both unicellular haploid and diploid phases Alternation of Generations Fig 29 5 Ulva multicellular Green algae Life cycle No diagram is available Know that this is an example of isomorphic alternation of generation Laminaria multicellular Brown algae Life Cycle Fig 28 18 Bryophyte non tracheophyte Moss Life Cycle Fern non seed Tracheophyte Life Cycle Pine Gymnosperm Life Cycle Fig 30 6 Angiosperm Life Cycle Fig 30 10 38 2 38 3 38 5 38 7 2 3 Chlamydomonas life cycle with unicellular haploid and diploid phases 4 5 6 7 8 9 10 11 tcarlson berkeley edu 09 01 08 Bryophytes Pteridophytes Alternation of Generations X Haploid Dominant X X Sporophyte dependent on gametophyte X Water required for fertilization X X Sperm with flagella X X Archegonium Heterosporous with heterosporangia Diploid Dominant Tracheids Vessels Pollination Pollen Gametophyte dependent on sporophyte Seeds Flowers Fruits Double fertilization Triploid Endosperm X Angiosperms X X Independent sporophyte gametophyte Antheridium Gymnosperms X X X X X aquatic ferns X X X X X X X gnetophytes X mainly wind X X X X X X X X animals wind X X X X X 12 13 14 15 16 17 ANGIOSPERM LIFE CYCLE Fig 30 10 Flowering Plant Flowering Plant Flower Flower Carpel megasporophyll Stamen microsporophyll Ovule megasporangium Anther with 4 chambers 4 microsporangia Megasporocyte Mother cell Diploid precursor cell Microsporocyte Father cell Diploid precursor cell Megaspore Microspore Megagametophyte 7 cells with 8 nuclei Pollen grain 2 celled pollen grain with 1 vegetative cell 1 generative cell Egg with 2 synergid cells near micropyle Two polar nuclei cell Mature microgametophyte has 3 cells pollen tube cell develops from vegetative cell 2 sperm develop from generative cell Egg ovum Sperm 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
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