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Effect of light intensity on the production of oxygen in plant
Why are chloroplasts important in photosynthesis
How light affects photosynthesis in plants
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Taking all else into account, the single most important thing needed for life on earth to survive and exist is sunlight. The sun provides organisms with food, water and oxygen; all necessities in order for life to exist. Of course we cannot consume sunlight all on our own. Nor can we convert it into energy on our own. The process that makes it possible for us to benefit from sunlight is called photosynthesis. [1] Photosynthesis is chemical process in which plants capture energy from the sun, through components called chlorophyll, and use carbon dioxide (CO2) and water (H2O) to then convert the sunlight into glucose (C6H12O6). The byproducts of the reaction are oxygen and water. Although it is mostly thought of as a chemical process, a lot …show more content…
These two molecules expertly absorb light at the blue and red sections of the spectrum when refined in the solution, and not very effectively in between (in living cells, this is not entirely reflected). By enhancing its light-absorbing proficiency by making a series of pigments, photosynthesis can cover more of the visible spectrum. These additional pigments act receivers to carry the energy they absorb into the reaction center. A chlorophyll molecule at the reaction center can then transfer its excited state into biosynthetically useful …show more content…
• The light reactions increase the permeability of the stromal membrane to cofactors such as Mg++ which are required for the Calvin Cycle.
An important aspect of the matter lies in the hypothetical “radiation temperature” assigned to the light beam. This concept originates in Planck’s view of assigning an entropy, and thus a temperature, to radiation. However, Planck was very clear that there is only one unique thermodynamic radiation temperature: that of the black body at equilibrium (Planck 1912). In fact, he states that since rays of radiation, used to define a temperature, passing through a point can be arbitrary, there are an infinite number of such “temperatures”. Almost all of the previous discussions have used these arbitrary “temperatures” in thermodynamic equations that require equilibrium to be
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 plant cells. Within the chloroplasts are multiple photosynthetic pigments that absorb light from the sun (Campbell, 1996). Photosynthetic pigments work by absorbing different wavelengths of light and reflecting others. These pigments are divided into two categories: primary (chlorophyll) and accessory (carotenoids) pigments.
... 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.
This chemical is used to catch the light energy needed in photosynthesis. They take carbon dioxide from the air. Plants use sunlight to turn water and carbon dioxide into glucose. Plants use glucose as food for energy and as a building block for growing. The way plants turn water and carbon dioxide into sugar is called photosynthesis.
Before learning about photosynthesis, I thought this was just a way for plants to grow, not knowing the full detail that goes on inside the plant for it to grow. So, after learning about what photosynthesis is and how it truly works, it is something that is remarkable and how plants are really the only living thing that uses this process. Photosynthesis is the process of taking in carbon dioxide (CO2), which is a gas that is exhaled from animals and goes into the air and is absorbed into a plant, water (H2O) which is absorbed through the roots of a plant or known as capillary action, sunlight is absorbed through chloroplasts which contain chlorophyll or better known as the leaves of the plant. With the photosynthesis process, the plant can create a by-product known as oxygen gas which is released through the little pores into the atmosphere (Simon, Dickey, Hogan & Reece, n.d.).
The process of photosynthesis is present in both prokaryotic and eukaryotic cells and is the process in which cells transform energy in the form of light from the sun into chemical energy in the form of organic compounds and gaseous oxygen (See Equation Below). In photosynthesis, water is oxidized to gaseous oxygen and carbon dioxide is reduced to glucose. Furthermore, photosynthesis is an anabolic process, or in other words is a metabolism that is associated with the construction of large molecules such as glucose. The process of photosynthesis occurs in two steps: light reactions and the Calvin cycle. The light reactions of photosynthesis take place in the thylakoid membrane and use the energy from the sun to produce ATP and NADPH2. The Calvin cycle takes place in the stroma of the chloroplast and consumes ATP and NADPH2 to reduce carbon dioxide to a sugar.
= = = [IMAGE][IMAGE]6CO2 + 6h20 light energy and chlorophyll C6H1206 + 6O2 Carbon dioxide + water converted into glucose and oxygen. Theory of photosynthesis Photosynthesis is a chemical reaction, which uses the energy from sunlight to convert carbon dioxide and water to oxygen.
“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).
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
Photosynthesis and cellular respiration help sustain life on planet earth as both are metabolic processes in their own way. Photosynthesis is the process by which plants and other organisms use energy from the sun to form glucose from water and carbon dioxide. From there, glucose is then converted to ATP by way of cellular respiration. To convert nutrients that are biochemical energy into ATP, a process such as cellular respiration that has reactions needs to take shape in the cell of an organism, releasing waste products at the same time. For the continuous energy cycle that tolerates life on Earth as we know it Photosynthesis and Cellular respiration very essential. They have a few stages where energy and various connections occur within the eukaryotic cell. Cellular respiration takes place in the lysosome, an organelle that is found in the cytoplasm of eukaryotic cells. It uses enzymes to break down biomolecules including proteins, nucleic acids, carbohydrates, and lipids. Photosynthesis involves the chloroplasts, which contain pigments that absorb the sunlight and then transfigure them to sugars the plant can use. Those specific processes are crucial in how far and diversified evolution has
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,")
however it does not easily absorb green or yellow light, rather it. reflects it, this decreases the rate of photosynthesis. This can
“Action spectrums describes the efficiency with which specific wavelengths produce a photochemical reaction. Photosynthesis involves the harvesting of light (absorption spectrum) and the subsequent photochemical and biochemical reactions. Meaning, an action spectrum describes the wavelengths that actually drive photosynthesis,” (heliospectra,2017). It can show the effect it has on photosynthesis if one of the wavelengths was to be taken away, it gives us not only a better understanding of how photosynthesis works but also the plant and how chlorophyll work and the different light spectrums that E. Nuttallii prefers for this reaction to