ipl-logo

Elodea Canadensis

1305 Words6 Pages

Elodea Canadensis is an aquatic weed that, like any other plant, uptakes carbon dioxide during photosynthesis and produces it through aerobic respiration. The purpose of this experiment was to measure the amount of carbon dioxide production in Elodea Canadensis plant with varying light source distances in order to understand whether more photosynthesis than aerobic respiration in the plant has occurred. This was done through a two-day experiment where the Elodea plant was first placed under a light source 30 cm away from the plant in the beaker with saturated carbon dioxide and then, on the second day, placed 20 cm under the light source. The amount of carbon dioxide was measured with phenolphthalein and sodium hydroxide (NaOH) and compared …show more content…

It is considered a weed due to its capabilities of surviving in different conditions, such as low light, acidic or mineralized water, as well as under ice. It tolerates pH values from 6.0 to 7.5 and temperatures from 1 to 25 degrees Celsius. Its capability to do so results in the inhibition of the growth of other plant species and leads to competition habitat alteration, and becomes a threat to biodiversity. Its management is extremely difficult and for this reason research is going on for prevention …show more content…

Both photosynthesis and aerobic respiration are necessary processes in plants and provide energy. Aerobic respiration uses glucose (sugar) and oxygen to form carbon dioxide and energy while photosynthesis uses carbon dioxide and water to form glucose and oxygen. Photosynthesis may only occur during the day time while aerobic respiration occurs all the time. Since an increase in carbon dioxide levels indicates an increase in aerobic respiration and a decrease in photosynthesis, we can measure the net exchange of carbon dioxide levels and determine whether more photosynthesis or aerobic respiration at a particular time has occurred. We hypothesized that the beaker that is exposed to higher concentrations of light at a shorter distance from the lamp will produce lower amounts of carbon dioxide due to more available light energy. This experiment will show how the light intensity affects the cellular respiration and photosynthesis in the Elodea plant and whether higher light intensity really does prove more photosynthesis, and thus lower amounts of carbon dioxide, will be made. This experiment is important because it could provide evidence on whether light intensities affect the growth of Elodea and could help manage its

Show More
Related
1984 Words | 8 Pages

The most important result from this experiment is that it suggested that the increase of Carbon Dioxide, will drastically increase the growth mountain maple in the covered (from the sun) parts in a forest, in the meantime any increase in the temperature of the soil will nullify the increase of light, as we know is to be the main ingredient for photosynthesis. 5. The authors do not use any citations in the

Read More
547 Words | 3 Pages

The average CO2 consumption for green light was 0.00773533 ppt/min while all the other colors of light tested are equal to, or exceed 0.01651 ppt CO2 consumed per minute. Graph 1: Amount of CO2 Consumed clearly shows that photosynthesis performed most poorly under green light. Red, blue, and white light each caused more CO2 consumption than green light. Because the pigment in the green, photosynthesising chloroplasts reflects green light, there was little photosynthesis occuring while green light was being shown on spinach leaves. The green light is reflected, rather than absorbed by plants and therefore does not provide the needed sunlight energy to make photosynthesis

Read More
431 Words | 2 Pages

Especially since the experiment states that it was a healthy plant, whereas a yellowish, drooping malnourished plant would not be able to provide sufficient data. So for the time being it'll take in CO2 until it stops functioning without the sun. Tube C would also be yellow because there is no longer equilibrium once the plant runs out of initial energy from it's previous lit environment(before being used for the experiment). Tube D will not change because there is nothing with get the blue

Read More
1113 Words | 5 Pages

In this experiment Lumbricus terrestris are being tested for their different types of breathing habits and carbon dioxide release. The Lumbricus terrestris were placed in different a container and placed in one incubator to find the carbon dioxide levels when put in heat. After the Lumbricus terrestris sat for 2 minutes, they would be placed within the incubator with the CO2 sensor attached to the container. This procedure was produced 5 different times. If the temperature is increased, then all the Lumbricus terrestris will release more carbon dioxide into the air or CO2 sensor.

Read More
1169 Words | 5 Pages

Because carbon dioxide is absorbed by the plant during photosynthesis less carbon dioxide present in the chamber is a sign that photosynthesis is working. The four lights used for this experiment range across the light spectrum on both sides in order to test a wider variety of wavelengths. All lights will be placed directly on the spinach leaf at the same distance so as not to give any spinach leaf a different light intensity, which could affect the data. This experiment will be able to show which light, ranging across the light spectrum, will allow the Spinach to perform photosynthesis more efficiently.

Read More
723 Words | 3 Pages

Whether it is through bioluminescence or natural sunlight, living organisms need light in order to survive. However, not all organisms prefer a high intensity of light, but with light comes access to food and if it happens to be absent, then survival rates are jeopardized. In this experiment, we investigate the effects of light on Drosophila melanogaster, which have been extensively studied as a model organism for human genetic diseases. Light has been shown to support all life forms by providing a living organism with energy and food.

Read More
387 Words | 2 Pages

We accept our hypothesis of the germinated seeds in the dark and the dormant seeds in the dark having a higher rate of cellular respiration then germinated seeds in the light and the dormant seeds in the light. The germinated seeds in the dark had 0mL of change in oxygen levels while the germinated seeds in the light had -.05mL of change in their oxygen levels. The germinated seeds in the dark had a .05mL more for their change in oxygen then the germinated seeds in the light, therefore the germinated seeds in the dark had a higher rate of cellular respiration then the germinated seeds in the light. The dormant seeds in the dark had 0mL of change in their oxygen levels and the dormant seeds in the light had -.16mL of change in their oxygen levels. The dormant seeds in the dark had a .16mL greater change in their

Read More
420 Words | 2 Pages

photosynthesis and cellular respiration are extremely important in the cycle of energy to sustain life simply because nutrients would not metabolize in a productive manner. Both have numerous stages in which the process of energy occurs, and relationships with organelles located in the eukaryotic cell. Photosynthesis is a process by which green plant and other organism manufacture their food using sunlight to synthesize foods from carbon dioxide and water while cellular respiration is the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. Photosynthesis occurs within organelles called chloroplasts. These organelles can absorb light, and are located inside of leaves.

Read More
284 Words | 2 Pages

In this experiment, we are determining how the osmosis is effected when the salt solution is diffused on the elodea leaf cells and it organelles. The steps we took to solve this dilemma to determine the effect of the solution on the elodea leaf, was first to get two leafs from the elodea plant. Then we created the different salt solution in two tubes to later add in the slides.. As a class we seperated into our groups, we each place a leave on a slide to see it cells before contaminating it with the solution. After we examine the leaf, we added the 5% salt solution on the leaf slide and check the results.

Read More
233 Words | 1 Pages

We went to test how long it would take for the test tube to turn yellow and how much of the yellow liquid would deplete over the 48 hour time span. We filled the test tube with Bromothymol Blue Solution, allowing for the runner to blow into the liquid through a straw. After we completed the exercise part of the experiment, small plants were placed inside the test tubes and the test tubes were sealed away in a dark area. The objective was to see how exercise affects the disposal of carbon dioxide from cellular respiration and how light affects the absorption of carbon dioxide. According to the results, the longest time recorded was when the runner ran for a second time, while the shortest time was when the runner ran for the first time.

Read More
1079 Words | 5 Pages

+ ATP Although plants and animals have different methods of obtaining glucose, the cell respiration process occurs in both types of organisms. Many external factors in the environment may affect the organism's’ rate of respiration such as the temperature of the surrounding,

Read More
1362 Words | 6 Pages

Many of these plants have medicinal properties and have been used for centuries by indigenous communities for healing purposes (Foster, 1999). For example, the creosote bush, which is found throughout the Mojave Desert, has been used to treat various ailments such as colds, flu, and digestive problems. By protecting these plants, we can ensure that these important cultural traditions are preserved. Another benefit of protecting native plants in the Mojave Desert is their ability to absorb carbon dioxide and mitigate the effects of climate change. Desert plants have adapted to the harsh environment by developing efficient water use strategies, which enable them to survive with minimal rainfall.

Read More
1950 Words | 8 Pages

Research Question: How does the presence of light impact the rate of transpiration in plants? Aim: The aim of this experiment was to investigate how the presence of light affects the rate of transpiration in plants. Hypothesis: As light intensity increases, the rate of transpiration (water uptake) in a plant increases.

Read More
974 Words | 4 Pages

The oxygen depletion then eliminates submerged plants as well. Another study conducted by Landolt, E. and Kandeler, R. (1987) was an experiment done in order to measure the growth of duck weed. This is relevant as we expect that the knowledge acquired about the growth will assist us in obtaining the relevant information pertaining tour study.

Read More
2023 Words | 9 Pages

Introduction Plants are a major necessity in the balance of nature, people’s lives, and our terrain. We may not realize it, but plants are the ultimate source of food for almost 95% of the world population so says the National Group of Food. It’s a fact that over 7,000 species of plants are being consumed today. Plants are one of the reasons that we get clean water; as they help regulate the water cycle.

Read More

More about Elodea Canadensis

Open Document