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The important of light on photosynthesis
The important of light on photosynthesis
The effect of light on photosynthesis
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Photosynthesis is a chemical process by which green plants use the radiant energy to synthesize certain nutrients using water and carbon dioxide. This process to happen efficiently it requires the presence of light, water carbon dioxide, chlorophyll and enzymes. During the process of photosynthesis, carbon dioxide plus water in the presence of sunlight, enzymes and chlorophyll produce glucose and oxygen as waste product. The radiant energy is broken down the water into hydrogen atom and oxygen atoms, these atoms combine with carbon dioxide to make glucose and oxygen. As the radiant energy reaches the leave of a plant it penetrates through till it reaches the chloroplast, it then goes through the semi permeable membrane of the chloroplast. At the same time water enters the plant through the roots the water then makes it way up the plant carried by the xylem: this force that causes the water to travel up the plant is called the transpiration pull. This phase of photosynthesis is called the light dependant phase NADPH a co-enzyme takes the hydrogen atom to the light independent phase the hydrogen is taken from the water which splits into its 2 components. As the sun’s rays reach the chloroplast of plant specifically the thylakoids (contain chlorophyll) which are stacked together to form a grana. Without out the radiant energy water will not be able to separate into the water into oxygen and hydrogen. Without radiant energy photosynthesis would not occur. In this experiment we want to determine whether light is necessary for photosynthesis. The predicated outcome of this experiment is that photosynthesis will not occur without the presence of light or radiant energy. The product of photosynthesis is glucose which can also be said to b...
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...4, from Encylopedia: http://www.life.illinois.edu/govindjee/encyc/encarta.htm
KhanAcademy. (2014). Photosynthesis: Light reactions and photophosphorylation. Retrieved March 24, 2014, from KhanAcademy: http://www.khanacademy.org/science/biology/photosynthesis/v/photosynthesis---light-reactions-and-photophosphorylation
ONLINE LABS. (n.d.). Importance of Light in Photosynthesis. Retrieved March 24, 2014, from ONLINE LABS: http://amrita.olabs.co.in/?sub=79&brch=16&sim=126&cnt=1
Unknown. (n.d.). EXPERIMENT III: SHOWING THAT LIGHT IS NECESSARY FOR PHOTOSYNTHESIS . Retrieved March 24, 2014, from ELATE: http://www.elateafrica.org/elate/biology/nutrition/worksheet111.html
Unknown. (2013, June 28). Factors affecting photosynthesis. Retrieved March 24, 2014, from The Amazing World of Science: http://ellemedit1234.wordpress.com/2013/06/28/factors-affecting-photosynthesis/
... in the chloroplasts in some of their cells. Chlorophyll allows the energy in sunlight to drive chemical reactions. Chloroplasts act as energy transducers, converting light energy into chemical energy. So as the plant has more light the chlorophyll inside the chloroplasts can react faster absorbing in more light for food and energy.¡¨ So this shows my prediction was correct for in my experiment and shown in my result table and graph the more light intensity there is on a plant the higher the rate of my photosynthesis will be. My prediction is very close to what I said the results will be so my prediction was correct and has been proven to be correct in my result table, graph and now explained again in my conclusion.
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.
The high rate of absorbance change in blue light in the chloroplast samples (Figure 1) can be attributed to its short wavelength that provides a high potential energy. A high rate of absorbance change is also observed in red light in the chloroplast samples (Figure 1), which can be accredited to the reaction centre’s preference for a wavelength of 680nm and 700nm – both of which fall within the red light range (Halliwell, 1984). Green light showed low rates of photosynthetic activity and difference in change in absorbance at 605nm in the chloroplast samples (Figure 1) as it is only weakly absorbed by pigments, and is mostly reflected. The percentage of absorption of blue or red light by plant leaves is about 90%, in comparison to the 70–80% absorbance in green light (Terashima et al, 2009). Yet despite the high absorbance and photosynthetic activity of blue light, hypocotyl elongation was suppressed and biomass production was induced (Johkan et al, 2012), which is caused by the absorption of blue light by the accessory pigments that do not transfer the absorbed energy efficiently to the chlorophyll, instead direction some of the energy to other pathways. On the other hand, all of the red light is absorbed by chlorophyll and used efficiently, thus inducing hypocotyl elongation and the expansion in leaf area (Johkan et al, 2012).
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.
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
Moreover, a future experiment is to determine the effect that the distance between the lamp and the solution has on the rate of photosynthesis. Several experiments with a similar setup to this experiment that vary the distances between the lamp and solution could be used to test this.
To make the test fair I will use the same amount of water and the leaf
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.
Photosynthesis in simpler turns is the ability of a live plant to carry on its chemical process by the use of light energy. Photosynthesis can not take place when there is absolutely no light, instead it stores the light it captures during the day, and uses it when needed. Photosynthesis can take place in land plants and aquarian plants such as algae. There are many factors that influence the ability of a plant to go through photosynthesis, such as light, the color of light and amount of water and or light.
The photosynthetic pigments are important because they donate the electrons needed to start the sequence of reactions
Light is a very important factor in the rate of photosynthesis, in my project I am going to test that plants do need light in order to photosynthesise. It will be very interesting to see how light will influence the rate of photosynthesis in plants and what will happen if they do not get the required light in order to produce starch .
This is the same if there is the light intensity is too high as this can damage the chloroplasts in plants and this will minimize the rate of photosynthesis. As shown in the graph as the light intensity increases, the photosynthesis rate increases until a point is reached where the rate begins to level off into a plateau. At a low light intensity, photosynthesis occurs slowly because only a small quantity of ATP and NADPH is produced. As the light intensity shown in the graph is gradually increasing, more ATP and NADPH (NADH is used in cellular respiration and NADPH is used in photosynthesis) are produced, which means more oxygen and sugar is produced, therefore increasing the rate of photosynthesis. But as the light intensity increases even more and past a certain light intensity on the graph, this is due to the other factors such as carbon dioxide limiting the rate of
This beautiful thing that all living things should value is photosynthesis. Without photosynthesis, there wouldn’t be humans, animals, insects, and most importantly life! What is a Photosynthesis? According to scientists, photosynthesis is “the process by which green plants and 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.”
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis. Introduction Photosynthetics take 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 ] 6CO 2 + 6H20 C 6 H12 O 6 + 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 nor survive.
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).