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what effect does carbon dioxide have on photosynthesis
what effect does carbon dioxide have on photosynthesis
practical detail on photosynthesis
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Without carbon dioxide plants cannot photosynthesize. Through reading various books and web pages it was made clear that carbon dioxide is definitely one of the raw materials needed for photosynthesis, but I wanted to see whether this is actually true and if carbon dioxide is taken away completely will the plant photosynthesize at all? By taking a two plants of the exact same species, de-starching them both followed by putting plant one in conditions where carbon dioxide is taken away completely, and plant two will then be put in conditions where carbon dioxide is added, after a day or two in these conditions leaves from both plants will be tested for starch, if the leaf tests positive for starch it means that the plant has photosynthesized, if the leaf tests negatively for starch it means that the plant has not photosynthesized at all. The aim of my experiment is to see whether carbon dioxide is really necessary for photosynthesis, and to see if a plant can photosynthesize at all with no carbon dioxide present in its environment even when it is still exposed to all the other factors that are too needed for photosynthesis.
Review of literature
1. About.com: photosynthesis by Regina Bailey
Carbon dioxide, water and sunlight are used to produce glucose, oxygen and water. The chemical process is: 6 molecules of carbon dioxide + 12 molecules of water + light = glucose + 6 molecules of oxygen + 6 molecules of water.
Carbon dioxide is taken in through the stomata in the leaves of the plant.
2. Yahoo. Answers: How does carbon dioxide affect the rate of photosynthesis? By Hareez
“As carbon dioxide concentration increases, the rate of photosynthesis increases.”
If concentrations of carbon dioxide are high, photosynthes...
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... photosynthesize. Without the vital factors of; carbon dioxide, water, sunlight and chlorophyll, plants would not be able to photosynthesize and therefore would not be able to produce their own food and thus would die. Without plants there would be no life on earth as basically all animals are directly or indirectly reliant on plants for their food as they are not able to produce their own food like plants. It is therefore crucial that plants get all these factors that they need in order to photosynthesize because, they are so important for the well being of the whole world, not only for food but also giving us the oxygen we need to breathe and stay alive, as they let off oxygen as a bi-product. To further improve this experiment one could test how the amount of carbon dioxide influences the rate of photosynthesis and therefore the speed at which a plant can grow.
The majority of life on Earth depends on photosynthesis for food and oxygen. Photosynthesis is the conversion of carbon dioxide and water into carbohydrates and oxygen using the sun’s light energy (Campbell, 1996). This process consists of two parts the light reactions and the Calvin cycle (Campbell, 1996). During the light reactions is when the sun’s energy is converted into ATP and NADPH, which is chemical energy (Campbell, 1996). This process occurs in the chloroplasts of plants cell. Within the chloroplasts are multiple photosynthetic pigments that absorb light from the sun (Campbell, 1996).
Oxygen + glucose → Carbon dioxide + water + energy (in the form of ATP)
In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable.
We depend on plants to obtain our oxygen. Plants produce glucose that assists in its living and growing and we contribute by releasing carbon dioxide. In order for us to live, we need the oxygen that plants produce by making glucose.
Materials needed for the cellular respiration experiment were two chambers to trap the CO2, a scale,10 grams of germinated chickpeas, germinated black beans, germinated cranberry beans, germinated red kidney beans, as well as germinated mung beans and glass beans. A Pasco CO2 sensor as well as a computer with SPARKvue software are also required. This experiment contained an independent variable: type of beans and dependent variable: amount of carbon dioxide, this is important to note because it identifies which variables are being altered during the experiment as well as which are not. The independent variable being the species of germinated beans due to the amount of carbon dioxide emitted from each
Autotrophs, can build organic compounds from simple molecules such as water and carbon dioxide and their type of feeding is called autotrophic nutrition. While they are building complex molecules, they need large amounts of energy. They are divided into two groups according to their source of energy: chemoautotrophs and photoautotrophs. Chemoautotrophs can synthesize organic compounds from CO₂ AND H₂O by using inorganic oxidation energy and they do not require sunlight. However, photoautotrophs, including green plants, produce sugar and O₂ from CO₂ and H₂O by using sunlight. The green pigment which absorbs the light is called chlorophyll and this process is called photosynthesis.
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
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 = =
Carbon dioxide or CO2 is known to be one of a number of gases that are astonishingly transparent to the visible light that falls on the Earth from the Sun, but it absorb the infra-red radiation that emitted by the warm surface of our Earth, to prevents its loss into space. Moreover, CO2 has varied considerably and this affected the Earth’s temperature. Most common source of this CO2 is known as the fossil fuel. Fossil fuels are primarily coal, hydrocarbons, natural gas, or fuel oil that formed from the remains of the dead plants and also animals. The burning fossil fuel that has been created by humans is the largest source of emissions of the carbon dioxide.
“Photosynthesis (literally, “synthesis from light”) is a metabolic process by which the energy of sunlight is captured and used to convert carbon dioxide (CO2) and water (H2O) into carbohydrates (which is represented as a six-carbon sugar, C6H12O6) and oxygen gas (O2)” (BioPortal, n.d., p. 190).
Experiment #1: The purpose of this experiment is to investigate the effects of baking soda and light intensity on the rate of photosynthesis of green spinach leave through the observation of floating disk.
C3 photosynthesis is the ancestral form of photosynthesis and is present in the majority of plant species (Sage, Sage & Kocacinar 2012). In this process CO2 enters the mesophyll cell (mc) via openings in the epidermis called stomata and diffuses into the into the chloroplast where it enters the Calvin cycle (Raven, Evert & Eichhorn 2013). The Calvin cycle is made up of three stages: 1. Carboxylation of Ribulose-1,5-bisphosphate (RuBP). In which a molecule of CO2 is covalently bonded to a molecule of RuBP forming the first stable intermediate 3-Phosphoglycerate. It is from this 3 carbon product that the name C3 photosynthesis comes from. This reaction catalysed by the enzyme Ribulose-1,5-bisphosphate carboxylase-oxygenase (Rubisco) 2. Reduction of 3-phosphoglycerate to the carbohydrate glyceraldehyde-3-phosphate, utilizing the ATP and NADPH formed in the light harvesting reactions. 3. Regeneration of the initial substrate RuBP (Taiz & Zeiger 2006). These stages encompass thirteen different reactions the net result of which is:
("Photosynthesis - Biology-Online Dictionary") This process can be simplified in this equation: 6CO2+12H2O+energy=C6H12O6+6O2+6H2O. It means photosynthesis is a process in which carbon dioxide (CO2), water (H2O) and light energy are utilized to synthesize an energy-rich carbohydrate like glucose (C6H12O6) and to produce oxygen (O2) as a by-product. ("Photosynthesis - Biology-Online
Photosynthesis is the process in which living cells from plants and other organisms use sunlight to produce nutrients from carbon dioxide and water, the image below “Diagram of photosynthesis 1,” helps show this process. Photosynthesise generally creates oxygen as a by-product through the use of the green pigment, chlorophyll, found in the plant that helps this reaction occur. “Photosynthesis provides us with most of the oxygen we need in order to breathe. We, in turn, exhale the carbon dioxide needed by plants,” (factmonster,2017). This is able to show us why photosynthesis is so greatly needed to occur through plants in order to give one another essentials needed for continuity of life. “Plants perform photosynthesis because it generates the food and energy they need for growth and cellular respiration,” (photosynthesieeducation, 2016).
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,")