Chapter 29 & 30 - Plants Notes

Chapter 29 & 30 - Plants Notes -...

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PLANT DIVERSITY Evidence plants descended from green algae (CHAROPHYCEAN) ancestors   Both have rose-shaped complexes for cellulose synthesis   Both have peroxisome enzymes to reduce effects of photorespiration   Both have similar flagellated sperm   Both form cell walls in same way during cell division   Cellular/chloroplast DNA similarities ALL PLANTS HAVE A LIFE CYCLE with TWO MULTICELLULAR STAGES       =  ALTERNATION OF GENERATIONS HAPLOID GAMETOPHYTE  undergoes  MITOSIS  to produce 1n GAMETES                                              (sperm or egg) FERTILIZATION  (egg + sperm) produces  DIPLOID ZYGOTE ZYGOTE  develops into  DIPLOID SPOROPHYTE   SPOROPHYTE  (2n) undergoes  MEIOSIS  to produce HAPLOID SPORES   SPORES (1n) develop into  HAPLOID GAMETOPHYTE SPORES  are produced in  SPORANGIA Gametes produced in multicellular organs =  GAMETANGIA        MALE  gametangia  = ANTHERIDIA - make sperm                         
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This note was uploaded on 02/14/2012 for the course BIO 151 taught by Professor Grinblat during the Fall '08 term at Wisconsin.

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Chapter 29 & 30 - Plants Notes -...

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