Green Algae
Introduction
In Lab we obtain a water sample from the lab provided to us with hopes of finding an abundance of green algae. Green Algae specifically Chlamydamonas is found mostly in fresh water, are unicellular microbe that has a structure much like the chloroplast of land plants but having two catergories; one which is charophytes more resembles of land plants and the other chlorophytes of some are marine species (Campbell and Reece p.637). Chlamydamonas sexually reproduce when there is a nutrient shortage, environmental drough, or any other stressful conditions they will fuse together of different mating types. When conditions are flavorable green algae will reproduce asexually.
Method and Materials
Under microscopy our sample did not show any green alagae microbes but we were able to observe them from another team's sample.
Results
Team 2 were the only experimental team to provided a viable sample of green algae under microscope. The Green Algae Chlamydomonas were observed as little green dots bouncing into one and other in a swimming fashion and others were joined together side by side.
Discussion
The Green Algae Chlamydomonas are haploid cells when mature. As we saw them bouncing from one and another would assume the different mating types were trying to connect as we observed in a few microbes actually joined together. The condition of removing the water sample containing Green Algae microbes from their habitat may have created a stressful situation for them hence the observation of sexually reproduction.
In Lab we obtain a water sample from the lab provided to us with hopes of finding an abundance of green algae. Green Algae specifically Chlamydamonas is found mostly in fresh water, are unicellular microbe that has a structure much like the chloroplast of land plants but having two catergories; one which is charophytes more resembles of land plants and the other chlorophytes of some are marine species (Campbell and Reece p.637). Chlamydamonas sexually reproduce when there is a nutrient shortage, environmental drough, or any other stressful conditions they will fuse together of different mating types. When conditions are flavorable green algae will reproduce asexually.
Method and Materials
Under microscopy our sample did not show any green alagae microbes but we were able to observe them from another team's sample.
Results
Team 2 were the only experimental team to provided a viable sample of green algae under microscope. The Green Algae Chlamydomonas were observed as little green dots bouncing into one and other in a swimming fashion and others were joined together side by side.
Discussion
The Green Algae Chlamydomonas are haploid cells when mature. As we saw them bouncing from one and another would assume the different mating types were trying to connect as we observed in a few microbes actually joined together. The condition of removing the water sample containing Green Algae microbes from their habitat may have created a stressful situation for them hence the observation of sexually reproduction.
Reference
Our Amazing Planet, retrieved from website March 29, 2013, http://www.ouramazingplanet.com/3798-algae-eats-other-plants.html
Green Algae, Retrieved from website March 28, 2013, http://www.fcps.edu/islandcreekes/ecology/green_algae.htm
The protist parada, retrieved from website March 28, 2013, http://www.microscopy-uk.org.uk/micropolitan/fresh/protozoa/index.html
Reece, J.B., Urry, L.A., Cain, M.L., Wasserman, S.A., Minorsky, P.V., & Jackson, R.B., (2011). Campbell Biology (9th ed.). San Francisco, CA:
Pearson Education, Inc.
Green Algae, Retrieved from website March 28, 2013, http://www.fcps.edu/islandcreekes/ecology/green_algae.htm
The protist parada, retrieved from website March 28, 2013, http://www.microscopy-uk.org.uk/micropolitan/fresh/protozoa/index.html
Reece, J.B., Urry, L.A., Cain, M.L., Wasserman, S.A., Minorsky, P.V., & Jackson, R.B., (2011). Campbell Biology (9th ed.). San Francisco, CA:
Pearson Education, Inc.