lab exam review 10

lab exam review 10 - BIOL112LaboratoryReview...

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BIOL 112 Laboratory Review PLANT DIVERSITY I:  Adaptations of green algae – Increased cellular organization and specialization; a shift  from isogamous to oogamous sexual reproduction.  Under favorable conditions, asexual reproduction is prevalent.  If conditions deteriorate, sexual reproduction results in a diploid zygote capable of  surviving adverse conditions.  Chlamydomonas     is a simple, single-celled organism that resembles the gametes or  zoospores of more complex chlorophytes. Distinguishing characteristics are large cup- shaped nucleus, flagella and nucleus.  Spirogyra   is an example for filamentous green algae. They reproduce asexually by  fragmentation. Characteristic feature is two chloroplasts spiraling in opposite directions.  Volvox  colony consists of 500-50,000 individuals. Gametes are oogamous. Fertilization  results in a diploid zygote which forms thick-walled 
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This note was uploaded on 04/03/2012 for the course BIOL 112 taught by Professor Vaughn during the Fall '08 term at Texas A&M.

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lab exam review 10 - BIOL112LaboratoryReview...

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