Introduction: Photosynthesis is the process where plants transform light energy usually from sunlight into chemical energy and its balanced equation is 6CO2 + 6H2O –light energy----> C6H12O6 + 6O2 (Elsevier B.V.,LiveScience). Photosynthesis has major byproducts including water, glucose and starch(which is produced in the plant), and last but not least; oxygen. There are numerous amounts of plants all around the world producing CO2 necessary for human survival. However, the photosynthesis cycle is not visible which results in the plants appearing like they are not doing anything. One way to clearly prove that plants are indeed performing photosynthesis is to observe the plants giving off oxygen; which is one of the most important results of …show more content…
(add the number of bubbles for each trial of a light source and divide by 5) Sunlight 0.2 ml 0.2 ml 0.2 ml 0.2 ml 0.2 ml 0.2 ml Fluorescent lamp light 0.4 ml 0.4 ml 0.4 ml 0.5 ml 0.5 ml 0.44 ml Red lamp light 0.2 ml 0.2 ml 0.2 ml 0.2 ml 0.2 ml 0.2 ml Yellow lamp light 0.2 ml 0.3 ml 0.3 ml 0.3 ml 0.3 ml 0.28 ml darkness 0 ml 0 ml 0 ml 0 ml 0 ml 0 ml Conclusion: During the following lab, an aquatic plant was covered with a funnel and was placed underwater inside a beaker, with a graduated cylinder (submerged in water) was placed over the neck of the funnel. This lab tested out which source of light which is the independent variable would allow the aquatic plant to produce the most bubbles (dependent variable) and photosynthesize the fastest. This is clearly displayed because when photosynthesis is produced underwater it appears in the form of bubbles inside the water. These bubbles will travel up through the funnel and displace the water in the graduated cylinder. The dependent variable was tested by placing the four, 5cm aquatic plants in the beakers directly in front of the sources of light and observing how many bubbles were produced within the period of 10 minutes and how much water was displaced by the oxygen bubbles. The beaker in front of the light source with the most bubbles produced and with the most displaced water performed photosynthesis faster than all the other light sources. The sources of light used for this lab were sunlight, florescent, red, and yellow lamp lights, and
This meant that this cuvette (tested under light) should display a higher decrease in DCIP due to the reduction in absorbance (dependent variable) opposed to the other cell fractions tested depending on a sixteen minute period (independent variable). The overall goal was to provide proof, through data, that the cell fractions put under the light during the sixteen minute period would indicate a higher set of chloroplast activity versus the ones put in the
Photosynthesis consists of the following equation: Sun light Carbon dioxide + Water = = == == ==> Glucose + Oxygen Chlorophyll Chlorophyll is a substance found in chloroplasts, found in the cells of leaves.
In my experiment I am going to see how light affects the rate of photosynthesis. To do this experiment I am going to set up the apparatus as shown in figure 1.
Photosynthesis is one process of energy capture for living organisms. The formula for photosynthesis is 3CO2 + 6H2O + light C3H6O3 + 3O2 + 3H2O. Basically, during this process, light energy is captured and converted into chemical energy, but it goes much deeper than that. First, light is captured by chloroplasts that contain pigments that capture different photons of light and then reflect different colors. The pigments include: chlorophyll, which absorbs blue and red wavelengths but reflect green; phycobilins, which absorbs blue, green, and yellow,
Introduction: Photosynthesis uses the sun’s energy and uses it to convert carbon dioxide and water into sugar. There were two plants that stayed outside in the sunlight and two plants that were inside only receiving sunlight from the window. If the plants stay outside then they will grow at a faster rate and will be the tallest with most leaves because they receive more sunlight from the sun and have a fresher environment. Methods: Both the plants inside and outside were exposed to sunlight and given water every day. Results: The plants inside grew more than the plants inside. The plants outside did not last all of the weeks the experiment was being conducted.
Photosynthetic organisms have the ability to convert solar energy into electrochemical energy. This creates a dynamic relationship between the organisms and the light that they absorb. Although light is required to drive photosynthesis, the photosynthetic machinery can only tolerate so much of it. Excess light may lead to the generation of reactive oxygen intermediates resulting in oxidative damage to the photosynthetic apparatus (Niyogi, 1999). Therefore it is necessary for organisms such as the green algae Chlamydomonas reinhardtii to employ photoprotective mechanisms in order to maintain photosynthetic efficiency and reduce stress caused by excess light.
Plant pigments are molecules which reflect one color and absorb the rest. Plants use this light for photosynthesis which is the process by which plants make their food for energy. The reason for there being more than one pigment in a leaf is because each pigment can only absorb certain wavelengths of light, so leaves have more than one so they can absorb more light for photosynthesis. The pigments used for photosynthesis are found in the thylakoid membranes. Light must pass through the leaf and into the photosynthetic pigments so it can be absorbed. This is the reason why leaves are so thin. They want light to penetrate the leaf and get into the chlorophyll so photosynthesis can occur. If the leaves were to be thick then no light
Conclusion- The data supports my hypothesis. By looking at the graph titled “Average Rate of Photosynthesis” we see massive photosynthetic activity occurring from :30 to 10:00 with particularly impressive growth occurring in red and blue light around the 5:00 and 8:30 respectively. The colors that have the highest influence on photosynthesis is blue and red. This is also why so many gardeners both amateur and professional alike use blue and red lights to grown plants. Under red light, all discs floated before the tenth minute. This was also observed with blue light. The graph shows that green had the least successful photosynthetic rate, whereas red, blue and regular natural light had the most successful photosynthetic rate. Photosynthesis involves converting light energy in chemical energy through the use of photosynthetic pigments like chlorophyll. Light from the sun is comprised of different colors, sometimes referred to as wavelengths. My data matches research conducted by other scientists: chlorophyll absorbs red and blue light more than green. The green light is instead reflected making the leaves appear green. Green light experienced almost no photosynthesis throughout the entire experiment at any time. Almost no discs floated to the top at any point. Yellow, interestingly, was an outlier. I will discuss this further in the “Limitations of Experimental Design” section.
to find effects of distance of a light source from pond weed has on the amount of oxygen
Photosynthesis is a process in which carbohydrates are formed from carbon dioxide and hydrogen and in this light act as an energy source. End result is also oxygen and some byproducts. It is mainly done by plants not by animals. In photosynthesis plant uses the light taken from the sun for the conversion of carbon dioxide and water to glucose and oxygen. It converts the carbon dioxide taken from the atmosphere to oxygen whereas cellular respiration is opposite to that of photosynthesis. Human inhales oxygen which is produced by those plants and exhale carbon dioxide. In cellular respiration a compound is formed which is known as ATP. It is basically a process in which breaking of nutrients occur to provide humans with energy so that
Photosynthesis is the process of autotrophs turning carbon dioxide and water into carbohydrates and oxygen, using light energy from sunlight. Autotrophs are organisms that are able to produce nutrients and organic compounds using inorganic materials. Examples of autotrophs are green plants, algae, bacteria, etc. Organisms which are capable to photosynthesize are called photoautotroph. The chloroplasts (plant cell that contains chlorophyll) in autotrophs trap light energy from the sun and use it to combine carbon dioxide with split water to make food for themselves which are in the form of sugar, glucose, etc. Glucose in plants is made into a variety of molecules and chemicals to support its needs. Plant cells which contain complex chemical pathways add nitrogen and sulphur to produce amino acids and then protein. Plants make up their own cell membranes by rearranging carbon, oxygen, hydrogen and by adding phosphorus. We absorb chemicals produced by plants even though we can produce most of the chemicals we need because some chemicals like amino acids can only be obtained from plants. This shows that plants are crucial for animals as they are depended on it. Another function of photosynthesis is the waste product of the process is oxygen. Photoautotrophs transform carbon dioxide to oxygen when photosynthesizing. This is essential for life because oxygen is an important element for respiration which is performed by both autotrophs and animals.
Photosynthesis is a process of converting light energy to chemical energy and storing it in bonds of sugar. This process occurs in plants and some algae . Plants need only light energy,co2,and H2o to make sugar .
Photosynthesis is the biological process whereby radiant light is converted into chemical energy, light is absorbed by the chlorophyll, (a green pigment in chloroplast) the light (radiant) energy is trapped by the chlorophyll. Photosynthesis mainly occurs in the leaves because they have chlorophyll.
Photosynthesis is plants taking in water, carbon dioxide, and light to make sugar and oxygen. All producers make oxygen and sugar for the secondary consumers and then the carnivores eat animals that eat the plants. This article explains how Photosynthesis happens in the Chloroplast of the plants organelle, if the Chloroplast wasn't in the plant Photosynthesis couldn't happen. If living things didn't breathe out CO2 then the plants would die and living things would have no way of getting oxygen. This article also proves that without photosynthesis, we would not live long. Photosynthesis can help us get the fresh water we need and make sure we have enough oxygen to
According to scientists, photosynthesis is “the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.” ("pho•to•syn•the•sis,")