lOMoARcPSD|11837912
Biology 1441 Final Lab Report
CELL AND MOLECULAR BIOLOGY (The University of Texas at
Arlington)
In the experiment described in the following report, the object of study was the effect blue light
has on the production and consumption of carbon dioxide in the Elodea plant. In the control
trials, Elodea plants were submerged in CO2 saturated water; one was put in a dark drawer,
along with a beaker containing no Elodea, and the second Elodea plant was put under a lamp,
then they were left for 60 minutes before calculating the NET change in carbon dioxide levels.
In the experimental trials, the Elodea plants were submerged in CO2 saturated water; one was,
again, put in a dark drawer, along with a beaker containing no Elodea, and the second Elodea
plant was placed under a lamp containing a blue light, and left for 60 minutes before calculating
the NET change in carbon dioxide levels. The final results showed that the blue light had a
negative effect on the processes of photosynthesis and aerobic respiration in plant cells versus
photosynthesizing under a typical incandescent light bulb.
Introduction
Photosynthesis is the conversion of light energy to chemical energy, which takes place in the
plants chloroplasts; whereas aerobic respiration is the part of the metabolic pathway that
coverts O2 to CO2 for energy, which occurs in the mitochondria of the plant’s cell. Aerobic
respiration produces CO2 in the plants, and then the CO2 is consumed by the process of
photosynthesis. As the amount of aerobic respiration that takes places grows, so will the
, amount of CO2 that is released by the organism into the water, leading to the growing
formation of carbonic acid in the water, raising its acidity level. The more the photosynthesis
process transpires, the more CO2 will be consumed by the plant instead of released into the
water, leading to a smaller amount of carbonic acid being formed and a lower acidity level in
the water (Cain et al. 2011).
1
Biology 1441 Final Lab Report
CELL AND MOLECULAR BIOLOGY (The University of Texas at
Arlington)
In the experiment described in the following report, the object of study was the effect blue light
has on the production and consumption of carbon dioxide in the Elodea plant. In the control
trials, Elodea plants were submerged in CO2 saturated water; one was put in a dark drawer,
along with a beaker containing no Elodea, and the second Elodea plant was put under a lamp,
then they were left for 60 minutes before calculating the NET change in carbon dioxide levels.
In the experimental trials, the Elodea plants were submerged in CO2 saturated water; one was,
again, put in a dark drawer, along with a beaker containing no Elodea, and the second Elodea
plant was placed under a lamp containing a blue light, and left for 60 minutes before calculating
the NET change in carbon dioxide levels. The final results showed that the blue light had a
negative effect on the processes of photosynthesis and aerobic respiration in plant cells versus
photosynthesizing under a typical incandescent light bulb.
Introduction
Photosynthesis is the conversion of light energy to chemical energy, which takes place in the
plants chloroplasts; whereas aerobic respiration is the part of the metabolic pathway that
coverts O2 to CO2 for energy, which occurs in the mitochondria of the plant’s cell. Aerobic
respiration produces CO2 in the plants, and then the CO2 is consumed by the process of
photosynthesis. As the amount of aerobic respiration that takes places grows, so will the
, amount of CO2 that is released by the organism into the water, leading to the growing
formation of carbonic acid in the water, raising its acidity level. The more the photosynthesis
process transpires, the more CO2 will be consumed by the plant instead of released into the
water, leading to a smaller amount of carbonic acid being formed and a lower acidity level in
the water (Cain et al. 2011).
1
