BIOL 1108L Autotrophs in a Forest Ecosystem

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School

Georgia Gwinnett College *

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Course

1101

Subject

Biology

Date

Feb 20, 2024

Type

docx

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1

Uploaded by genevievegateswright

BIOL 1108L Autotrophs in a Forest Ecosystem This assignment is designed to be completed and submitted at the end of your lab. This assignment should be saved as 1108L-AF-Lastname-Firstinitial.docx. It is your responsibility to ensure that you have answered every question and submitted the correct file. Today’s lab is on terrestrial autotrophs in the forest ecosystem. Read through Background Information and Lab Activity information and answer the questions below. 1) Compare and contrast the energy flow and chemical cycling of a terrestrial ecosystem with an aquatic ecosystem. (2 pts) 2) What challenges meeting their life needs would organisms face moving from an aquatic environment to a terrestrial one? (2 pts) 3) Examine the moss specimen and slide at your bench. What structures do you notice? What other observations can you make? (2 pts) 4) Describe and explain the results from adding eosin dye to the rooted and unrooted Coleus cuttings. (1 pt) 5) After observing the prepared leaf slides, compare the number and arrangement of stomata between the two different plants. How might any differences affect transpiration? (2 pts) 6) a) Fill out the table below with your observations of the cobalt chloride strips. (1 pt) Sunflower Leaf Top Sunflower Leaf Bottom Coleus Leaf Top Coleus Leaf Bottom Magnolia Leaf Top Magnolia Leaf Bottom Cobalt Chloride Observations b) Provide an explanation for any differences observed between each of the plants and between the top and bottom of each plant. (1 pt) 7) Explain how the structures of the terrestrial autotrophs you have observed enable them to overcome the challenges of terrestrial life. (2 pts) 8) Review the Scientific Article: Fote and Mutiti, 2017, then focus on the Results section. Refer to Fig. 3 and, using your own words, describe your interpretation of the data displayed. (1 pt) 9) Refer to Fig. 11, describe your interpretation of the data displayed. (1 pt)
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