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Your search returned 28 essays for "elodea":

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Elodea - Elodea Elodea is a genus of aquatic plants often called water weeds. Elodea is native to North America and it is also widely used as aquarium vegetation. The introduction of some species of Elodea into waterways in parts of Europe, the Australia, Africa, Asia, and New Zealand has created a significant problem, and it is now considered a noxious weed in these areas. Elodea canadensis, sometimes called American or Canadican waterweed or Anacharis (a former scientific name) is widely known as the generic water weed....   [tags: Papers] 706 words
(2 pages)
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Effect of Light Intensity on Photosynthesis in Elodea - Effect of Light Intensity on Photosynthesis in Elodea Prediction I predict that as the light intensity doubles the number of bubbles produced per minute will double Results ======= Distance from beaker (cm) Light Intensity Number of bubbles Produced Per Minute Repeat 1 Repeat 2 Repeat 3 100 0.01 9 10 10 75 0.02 16 17 15 50 0.04 25 21 23 30 0.1 32 50 44 20 0.3 46 21 47 15 0.4 92 90 88 10 1 104 90 94 9 1.2 111 102 96 Conclusion ========== Figure 1 shows that repeat 1 rises ste...   [tags: Papers] 420 words
(1.2 pages)
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The Effect of Light on the Organic Plant Elodea - The Effect of Light on the Organic Plant Elodea Aim: To calculate the rate of photosynthesis from the number of oxygen bubbles produced by the plant. Photosynthesis: The process by which green plants use the sun's energy to build up carbohydrate reserves. Plants make their own organic food such as starch. Plants need Carbon dioxide, water, light and chlorophyll in order to make food; and starch and oxygen are produced. Carbon dioxide and water are the raw materials of photosynthesis....   [tags: Papers] 845 words
(2.4 pages)
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Investigating Factors that Affect the Rate of Photosynthesis in Elodea - Investigating Factors that Affect the Rate of Photosynthesis in Elodea Aim: To find out which factors affect the rate of photosynthesis in Elodea. Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast moving molecules collide with other fast moving enzymes causing them to react....   [tags: Papers] 2099 words
(6 pages)
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The Effect of Light Intensity on Photosynthesis Of Elodea Canadensis - The Effect of Light Intensity on Photosynthesis Of Elodea Canadensis Introduction I wanted to find out how much the light intensity affected the Photosynthesis in Elodea Camadensa. I decided to do this by measuring the amount of oxygen created during photosynthesis. Photosynthesis is the procedure all plants go through to make food. This process uses Carbon dioxide, water and light energy. It produces Oxygen and Glucose. [IMAGE]Carbon dioxide + water Light Energy glucose + oxygen Chlorophyll [IMAGE]6CO2 + 6H20 Light Energy C6 H12 O6 + 6O 2 Chlorophyll Photosynthesis occurs in the leaves of the plant in the palisade layer....   [tags: Papers] 991 words
(2.8 pages)
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An Investigation into the Effect of Light Intensity on the Rate of Photosynthesis on a Piece of Elodea - An Investigation into the Effect of Light Intensity on the Rate of Photosynthesis on a Piece of Elodea Plan: Method: 1) First I will put some water into a boiling tube and add 5 spatulas of Sodium Hydrogen Carbonate. I will add 5 spatulas of Sodium Hydrogen Carbonate as it reacts with water and forms carbon dioxide; also I have so much so that I have carbon dioxide in excess. 2) Then I will cut off 5cm of elodea and place it into the boiling tube. 3) Thirdly I will place the boiling tube in a test tube holder 5cm in front of the light source....   [tags: Papers] 1510 words
(4.3 pages)
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How Light Intensity Affects the Photosynthesis of a Canadian Water Weed - How Light Intensity Affects the Photosynthesis of a Canadian Water Weed Photosynthesis happens in all types of plants, whether on land or in the water. Photosynthesis is a process that plants use every minute in order to survive. They create the food that they need from Carbon Dioxide and Water. Here is the full, balanced chemical equation; [IMAGE]Carbon Dioxide + Water Oxygen + Glucose CHLOROPHYLL Or the chemical equation: [IMAGE]6CO2 + 6H2O 6O2 + C6H12O6 With these equations, we are going to see that at what rates photosynthesis happens in this Elodea....   [tags: Biology Essays] 694 words
(2 pages)
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Rate of Photosynthesis in Pond-Weed - Rate of Photosynthesis in Pond-Weed Plan The aim of this activity is to investigate one of the factors that affect the rate of photosynthesis in pond-weed. I am trying to find out if the distance of the pond-weed from a lamp will change the rate of photosynthesis. I will measure the rate of photosynthesis by counting the number of bubbles that are released by the stem of the pond-weed when the lamp is shone on it from different distances. What I think will happen is as the pond weed is moved further away from the lamp, less bubbles will be produced....   [tags: Papers] 833 words
(2.4 pages)
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Investigating the Factors that Affect the Rate of Photosynthesis - Investigating the Factors that Affect the Rate of Photosynthesis Aim: I will be investigating how light intensity affects the rate of photosynthesis, whether it decreases or increases the rate of photosynthesis. Background Knowledge: Photosynthesis is the process by which plants make their own food. For photosynthesis to occur, plants need: · Light energy from the sun · Chlorophyll to absorb light energy · Carbon dioxide from the atmosphere and from respiration in plant cells · Water which is absorbed by the roots and transported to the leaves by the xylem tubes....   [tags: Papers] 1223 words
(3.5 pages)
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Investigating Factors That Affect the Rate of Photosynthesis - Investigating Factors That Affect the Rate of Photosynthesis INTRODUCTION All green plants use raw materials from their surrounding atmosphere to make their own food. They do this by a process called Photosynthesis. Green plants contain many tiny structures called Chloroplasts and these contain a chemical called Chlorophyll. This chemical is a very important part of Photosynthesis, as this is where the plant, to produce its own food, absorbs sunlight. Photosynthesis mainly takes place in the Palisade Mesophyll cells, which are situated near the top of the leaf....   [tags: Papers] 1611 words
(4.6 pages)
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The Effect of Wavelength on Photosynthesis Rate - The Effect of Wavelength on Photosynthesis Rate Aim: To investigate how different wavelength (colors) of light affect the photosynthetic rate. I will use a pant that is a pond weed called elodea. I will measure the rate of photosynthesis by measuring the amount of o2 given off in bubbles per minuet from the elodea. I will do this by placing the Elodea in a test tube with sodium hydrogen carbonate then I will vary the light wavelength (color) using colored filters and count the number of oxygen bubbles given off using a pencil dot technique....   [tags: Papers] 1354 words
(3.9 pages)
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An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis - An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis Introduction Photosynthetic takes place in the chloroplasts of green plant cells; it can produce simple sugars using carbon dioxide and water causing the release of sugar and oxygen. The chemical equation of photosynthesis is: [IMAGE]6CO2 + 6H20 C6 H12 O6 + 6O2 it has been proven many times that plants need light to be able to photosynthesize , so you can say that without light the plant would neither photosynthesize or survive....   [tags: Papers] 970 words
(2.8 pages)
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The Limiting Effect of Light Intensity on Photosynthesis - The Limiting Effect of Light Intensity on Photosynthesis Aim: To investigate the limiting effect of light intensity on photosynthesis. Prediction: I predict that as the light source (desk lamp) is moved closer to the pondweed (Elodea), the rate of photosynthesis will increase therefore more oxygen will be produced creating more bubbles. I believe this will happen because when the light source is nearer to the plant more of the plants surface area is coming in to contact with the light from the desk lamp therefore more photosynthesis will occur which will mean more oxygen will be produced which will create more bubbles....   [tags: Papers] 613 words
(1.8 pages)
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Determining the Effect of Light Intensity on Photosynthesis - Determining the Effect of Light Intensity on Photosynthesis Aim In this experiment, I intend to alter the light intensity and measure its effect on photosynthesis through the production of oxygen Introduction Photosynthesis is the process by which green plants provide a source of energy for respiration. The formula is as follows- Carbon dioxide + water Carbon dioxide and water are chemically combined to produce glucose (the energy source) and oxygen (a waste product)....   [tags: Papers] 1671 words
(4.8 pages)
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Prokaryotic and Eukaryotic Cells - ... However, plant cells have cell walls, chloroplasts, and plastids that are not present in the animal cell. In this experiment, yogurt bacteria will be observed. Yogurt is a fermented milk product. The milk is heated to concentrate the sugars, cooled, and then injected with two different species of bacteria. By first observing bacterial smears, should be able to describe the species of bacteria in the yogurt. It is predicted that all three morphological types of bacterial cells in the yogurt will be seen....   [tags: termite gut, unicellular microorganisms, bacteria]
:: 2 Works Cited
1019 words
(2.9 pages)
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Investigating How Much Light Intensity Affects the Rate of Reaction - Investigating How Much Light Intensity Affects the Rate of Reaction Aim: To investigate how much light intensity affects the rate of reaction. Reaction: photosynthesis of Canadian pondweed (Elodea) Introduction- what is photosynthesis. The definition of photosynthesis is when plants process water and carbon dioxide to produce glucose by the process of photosynthesis. Photosynthesis is the method that plants use to make their own food. When photosynthesis takes place, plants use the suns energy to combine carbon dioxide from the air with water from the soil to create glucose (a carbohydrate)....   [tags: Papers] 713 words
(2 pages)
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The Processes of Photosynthesis and Fermentation - Introduction: “Fermentation occurs in fruits, bacteria, yeasts, fungi, as well as in mammalian muscle”(Biology Online, 2008, p. xx-xx) . “Yeasts were discovered to have connection with fermentation as observed by the French chemist, Louis Pasteur” (Biology Online, 2008, p. xx-xx). “Pasteur originally defined fermentation as respiration without air” (Biology Online, 2008, p. xx-xx). “However, fermentation does not have to always occur in anaerobic condition” (Biology Online, 2008, p. xx-xx). “Yeasts still prefer to undergo fermentation to process organic compounds and generate ATP even in the presence of oxygen” (Biology Online, 2008, p....   [tags: Biology, Organic Compounds, Bacteria, Fungi]
:: 2 Works Cited
3094 words
(8.8 pages)
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An Analysis and Evaluation of Data from Photosynthesis Experiments - An Analysis and Evaluation of Data from Photosynthesis Experiments Graph analysis This is my analysis for the investigation in to the affect of light intensity on the rate of photosynthesis to the Canadian pondweed, elodea. In the results the pattern is that when the light intensity is higher the readings are generally higher. On the graph the less the light intensity the lower the gradient of the curve. the equation for the photosynthesis process is; CO2 + 2H2O + Light Energy ========> [CH2O} + O2 + H2O, This shows that when the light intensity is increased the rate of reaction will be more quicker he only anomalous result there was, is the one in the 1...   [tags: Papers] 738 words
(2.1 pages)
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Investigating the Link Between Wavelength of Light and Rate of Photosynthesis - Investigating the Link Between Wavelength of Light and Rate of Photosynthesis PROBLEM ======= I have been asked to investigate the link between wavelength of light and rate of photosynthesis. HYPOTHESIS ========== I predict that the order of best absorption in a plat to produce more bubbles will be blue, yellow, orange, red and finally green. I predict this because blue has the shortest wavelength which produces the most energy and there is slightly higher absorption in the blue region by the plant....   [tags: Papers] 1105 words
(3.2 pages)
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An Experiment to Show the Relation Between Light Intensity and Photosynthesis - An Experiment to Show the Relation Between Light Intensity and Photosynthesis Introduction Photosynthesis takes places in the leaves of plants, mostly in the palisade layer of the leaf. Photosynthesis is the plants way of creating energy for itself(sugar), for growth, repair, storage and energy production. The test will be to find out the relationship between light intensity (voltage) and the rate of photosynthesis. Photosynthesis is: Carbon dioxide + water + sunlight ---> oxygen + carbohydrate + water Or 6CO2 + 12H2O + sunlight ---> 6O 2 + C6 H12O 6 + 6H2 O Oxygen is a product of photosynthesis; therefore we will be measuring the amount or rate of this...   [tags: Papers] 1076 words
(3.1 pages)
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The Effect of Light on Photosynthesis - The Effect of Light on Photosynthesis Plants need and use the same light of foods as animals but while animals have to eat other things to get their food, plants make it themselves. The way they do this is called photosynthesis. The other ways that plants are different from animals, such as having leaves and root or being green, they are all linked with photosynthesis. In photosynthesis, plants take carbon dioxide from the air and water from the soil, and use the energy from the sunlight to convert them into food....   [tags: Papers] 969 words
(2.8 pages)
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The Importance of Ecosystems to All Life - All ecosystems are important to all life, regardless of how big the particular ecosystem is. Freshwater aquatic ecosystems account for a minority of global aquatic ecosystems, with most being saltwater, but their health is critical to the planet and to human life. Ecosystems depend on all parts to work the way they are supposed to. If one part of the ecosystem goes away, whether it be through death or through emigration, then the whole ecosystem can suffer as a result. For example, the amount of plants available changes the amounts of nutrients available, and the number of predators available changes the amounts of prey and therefore plants available....   [tags: energy, organisms, biodiversity]
:: 12 Works Cited
795 words
(2.3 pages)
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Photosynthesis Practical - Photosynthesis Practical Introduction- Photosynthesis is the chemical process, which takes place in every green plant to produce food in the form of glucose. Plants use the suns energy to join together water and carbon molecules to make the glucose, which is sent around the plant to be used in respiration. 6CO + 6H O ® C H O + 12O (in the presence of light energy and chlorophyll) Aim- The aim of the experiment is to determine what effect light intensity has upon the rate of photosynthesis of Canadian Pondweed (Elodea)....   [tags: Papers] 1289 words
(3.7 pages)
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The Effect of Light Intensity on the Rate of Photosynthesis - The Effect of Light Intensity on the Rate of Photosynthesis Plan: Aim: To investigate the affect of light intensity on the rate of photosynthesis. Theory: Before I predict what will happen I must look at how photosynthesis occurs. Photosynthesis is the way plants create a source of food for themselves. Photosynthesis requires the following resources; Carbon Dioxide, Water and light. Inside the leaves of a plant there is a green substance, this substance is known as chlorophyll....   [tags: Papers] 531 words
(1.5 pages)
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Rates of Reaction Investigation - Rates of Reaction Investigation Aim - We are trying to see what effect changing light intensity has on the volume of oxygen produced. Prediction - Photosynthesis is where a plant uses sunlight, carbon dioxide and water to produce oxygen and glucose. The equation for this is: Carbon dioxide = water ====== glucose = oxygen I predict that as the lamp is placed further away from the plant the amount of oxygen produced will decrease. The factors that will affect the rate of photosynthesis are the amount of sunlight, the amount of carbon dioxide and water....   [tags: Papers] 1453 words
(4.2 pages)
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Photosynthesis - Photosynthesis Photosynthesis produces energy in the form of glucose it uses water from the soil, carbon dioxide from the air, and energy from the suns light. Photosynthesis takes place in all plants that contain chlorophyll. Photosynthesis mainly takes place in the palisade mesophyll cell in the leaves of plants. The main reaction is to produce oxygen and glucose, glucose is stored in the form of starch and does not affect osmosis, taking place in the plant. As plants respire both night and day this starch is often used up during the night when photosynthesis cannot take place....   [tags: Papers] 708 words
(2 pages)
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Investigating the Effect of Light Wavelength on the Rate of Photosynthesis - Investigating the Effect of Light Wavelength on the Rate of Photosynthesis Plan ==== Method Take a 250cm3 beaker and fill it with distilled water. Use distilled water so there are no impurities to disrupt photosynthesis. Then take x cm's of elodia and put it in the beaker. Cover the elodia with the large end of a funnel and the tip of the funnel cover with a test tube. Then direct a light onto this experiment. Measure the amount of bubbles that come from the elodia for x minutes....   [tags: Papers] 348 words
(1 pages)
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Plant And Animal Cells - Plant and Animal Cells I. Introduction All organisms in life are composed of at least one or more cells. Cells are the basic units of life. There are three main features of a cell. First, all organisms consist of one or more cells. Second, cells are the smallest units of life and third, cells arise only from preexisting cells. These three facts are referred to as the cell theory. All cells can be categorized into two basic cell types. They are prokaryotic and eukaryotic. To distinguish where cells are placed in the two categories, what is inside the cell must first be looked at....   [tags: Biology Biological Cells Essays] 1495 words
(4.3 pages)
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Your search returned 28 essays for "elodea":