its ability to remove nutrients and toxins from water sources. Thus‚ duckweed will kill the organisms that require similar nutrients‚ yet aid the organisms that would otherwise die to toxins. Specifically‚ if one was to place Elodea plants in a tank with duckweed‚ then the Elodea will die due to the lack of nutrients from the duckweed having used the nutrients for its own benefits. Furthermore‚ if one were to place an organism such as Daphnia in a tank with Duckweed‚ then the duckweed would remove any
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determine the effects of sugar on photosynthesis in Elodea. Sugar water with Elodea‚ water with Elodea‚ and water (control) are used to test for photosynthesis. Five drops of sugar water were added to sugar water with Elodea beaker. The three beakers were left under normal light for photosynthesis to occur. After 60 minutes‚ NaOH solution was added to each beaker to test the volume of CO2. The result shows that both Sugar water with Elodea and water with Elodea consumed the CO2 in same rate‚ which means sugar
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is a chemical element usually in the form of a yellow-green gas and is a strong oxidizing agent. Elodea is a type of aquatic plant also known as waterweed that is native to North America. In the experiment that took place‚ the effect of chlorine in the presence of photosynthesis reactions were studied. Elodea was inserted into different beakers. One containing water and the other‚ bleach. The elodea was left unattended for an hour so that observations could be made to tell the difference in the results
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aquatic phytocoenosium can be divided as Myriophyllum spicatum-Trapa maximowiczii‚ Nymphoides indica-Elodea nuttalli‚ Trapa maximowiczii-Limnanthemum nymphoides‚ Elodea nuttalli-Limnanthemum nymphoides. Lake East Taihu community diversity is relatively stable‚ but the diversity of Jun. is lower than the diversity of Sep‚ which could be the effect imposed by the artificial cultivation of Elodea nuttal. KEYWORDS: Lake East Taihu; Hydrophyte; Community diversity; Spatial and temporal distribution
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WEEK 2 EXPERIMENT ANSWER SHEET Please submit to the Week 2 Experiment dropbox no later than Sunday midnight. SUMMARY OF ACTIVITIES FOR WEEK 2 EXPERIMENT ASSIGNMENT Experiment 2 Exercise 1a – Effect of substrate concentration on enzyme function Experiment 2 Exercise 1b – Effect of pH on enzyme function Experiment 2 Exercise 2 – Cellular Respiration and Photosynthesis Experiment 2 Exercise 1A: Effect of substrate concentration on enzyme function Review the Week 2 Experiment Introductions‚ our online
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Carbon Dioxide Understanding and Production in Elodea‚ Snail‚ and Goldfish Introduction This report discusses an experiment to study the rate of aerobic cellular respiration in aquatic organisms which are Elodea (aquatic plant)‚ Snail‚ and Goldfish‚ by measuring carbon dioxide production. Because ectothermic organisms (Elodea‚ snail‚ and goldfish) were placed in completely covered beaker‚ each organism would produce different amount of carbon dioxide. The objective of the experiment is to measure
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photosynthesis as represented by the height increase of the water within the long glass tube. My hypothesis is as follows: If Elodea is placed in a green filtered test tube and tested for its photosynthetic rate‚ then it will have no change in growth rate or photosynthetic rate because Elodea does not require green wavelengths to photosynthesize. If we cover three different Elodea filled test tubes with a purple‚ blue‚ and green filter‚ then I anticipate the blue and purple filtered test tubes will show
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plant” we devised a hypothesis that states‚ If we place the two test tube‚ one with carbonated water and the other regular water‚ with the Elodea inside a dark environment it will perform cellular respiration as it will not receive enough light energy to perform photosynthesis. From the result of our experiment we found that the test tube with tap water and Elodea changed from its original color of Blue to a more faded shade of blue. The result showed that cellular respiration occurred as it used up
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affect the rate of photosynthesis‚ one can do work to try and increase the rate of photosynthesis. The purpose of this laboratory experiment was to determine which solution would have the highest impact on oxygen production within the aquatic plant‚ Elodea densa (Brazilian Waterweed). The photosynthesis reaction which occurs in the chloroplasts in the leaves of the plant
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There are many variables that could affect the rate of photosynthesis and the net consumption of carbon dioxide. In this experiment‚ the effects of how the intensity of light energy affected photosynthesis were observed. Two pieces of elodea was placed into separate beakers and one of the beakers was placed under a bulb of lower intensity and the other beaker being placed under a higher intensity bulb. The results showed that the beaker under the higher intensity light energy had a higher consumption
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