FLR REPORT DRAFT
Abstract:
Photosynthesis is a vital process that requires to utilize energy for plants. This experiment was done to evaluate the effects of carbon availability on photosynthetic activity. The aquatic plant Elodea densa was placed into sodium bicarbonate solutions of five concentrations ranging from 0.1% to 1.0%, in five independent trials (excluding the negative control treatment of water). The temperature and light intensity was constant. The results indicated a directly proportional relationship between the availability of carbon dioxide and the rate of photosynthesis of Elodea Densa, as photosynthesis continued to increase with increasing amounts of bicarbonate. The most O2 amount of oxygen produced was with the 0.7% NaHCO3 concentration and least with the control of water. The null hypothesis that stated carbon concentration does not affect rate of photosynthesis of the aquatic plant was rejected. The predicted hypothesis that an increase in bicarbonate concentrations results in an increase in the photosynthetic rate was accepted. In conclusion, there is a significant increase in photosynthetic activity as the concentration of NaHCO3 increases.
Introduction:
The process of photosynthesis, by which light energy is used to convert inorganic compounds into organic substances with the release of oxygen, may be the most important biological event sustaining life (Keir et al. 2017). In the light-dependent reactions, the chloroplasts of a plant use the pigment chlorophyll to convert light energy into chemical energy. This energy is used to split water and produce oxygen (Eller et al. 2015). The energy is later used in the light independent reactions, where carbon dioxide (CO2) undergoes carbon fixation with the aid of enzyme rubisco, because it catalyses both carboxylation and oxygenation reactions and most of responses of photosynthesis to light, CO2, and temperature (John Evans 2013).
An important part of photosynthesis is the intake of carbon; thus, it can be presumed that increasing the amount of available carbon will increase photosynthetic activity. In most plants there is an increased rate of photosynthetic rate, but it is limited by other factors and reaches a plateau (Lei H, Zhishan Z.
Light intensity is a key component in photosynthesis, amongst carbon dioxide and water to sustain a suitable rate of photosynthesis. Chlorophyll absorbs the light, causing photoexcitation and the formation of NADPH and ATP with production of O2 as a by-product. The Calvin Cycle takes the NADPH and ATP to reduce CO2 into sugars (CH2O), and return NADP+ and ADP + Pi to the light reactions. The process will then repeat. (Reece, et al, 2015)
Photosynthesis is the process in which plants consumed inorganic materials like solar light, carbon dioxide and water and converted it to an organic molecule like sugar and an inorganic gas like oxygen. Light is one of the major elements influencing the rate of photosynthesis; direct light concentration affects the noncyclic pathway (light
Photosynthesis is important because it balances the atmospheric gases and source of oxygen when plants do not consume carbon dioxide it would increase in the earth’s atmosphere causing
photosynthesis a few times in this essay. To explain why carbon is needed into the
Photosynthesis uses carbon dioxide and water and produces glucose. Photosynthesis provides the inputs for cellular respiration. Unlike cellular respiration which has three stages, photosynthesis has only two main stages, light reactions and the calvin cycle. The light reactions stage uses two different photosystems: water-splitting and NADPH-producing. These photosystems contain hundreds of pigment molecules such as chlorophyll a and b, and carotenoids. These pigments are very important for absorbing and reflecting light for the light reactions. The main fucnction of this first stage is to generate ATP and NADPH for the calvin cycle. The ATP and NADPH are used up along side carbon dioxide molecules to form an energy-rich sugar labeled G3P. G3P molecules are what are used to contrsuct glucose as well as other organic molecules. Carbon dioxide is essential for photosynthesis. Some plants are not able to receive the appropriate amount of carbon dioxide and therefore suffer as a result. However, some planst such a C4 and CAM plants have made evolutionary adaptations that allow the plant to still perform photosynthesis and survive on minimal amounts of carbon dioxide. These evolutionary adaptations also help to reduce water
Photosynthesis is a vital process that autotrophs use to transfer light energy into chemical energy. Photosynthesis ultimately produces O2 and glucose. It, like many other biological processes, can be affected by environmental variables. The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. In order to do this, we conducted three experiments. In the first experiment, we examined the effect of light intensity by placing vials with chloroplasts with DPIP at different light distances in which the results varied. Initially, 30cm away was the most effective for photosynthesis. Then 24cm appeared to be the most effective. Followed by 49cm at minutes 25 and 30. In the second experiment, we
What makes photosynthesis essential is when vitality entering the chloroplasts as daylight gets to be warehoused as the concoction vitality inside carbon-based blends. That sugar created in the chloroplasts furnishes plants with substance vitality and carbon systems to make all the significant natural atoms of cells. Photosynthesis produces more than 500 billion metric huge amounts of starches and is the most extreme vital technique on earth. It is additionally dependable and in charge of the event of oxygen in our environment.
Without photosynthesis we would not be able to receive energy. We should be more appreciate of plants, without them we would not survive. This paper will explain the basic components require for photosynthesis, the role of chlorophyll, how energy is transferred, and photosystems I and II and the most precious product results of photosynthesis.
Photosynthesis is an oxidation-reduction process powered by light in order to create energy for the cell. Plants, algae, and photosynthetic bacteria (Kingdom Protista) use light energy to synthesize organic compounds (Whitmarsh and Govindjee). The chemical equation for photosynthesis looks relatively simple, however, is truly complicated because the cell has to use over 30 different proteins to synthesize organic compounds within the cell. Photosynthesis is represented by the chemical equation, 6CO2 + 6H2O + light → C6H12O6 + 6O2. The equation shows that carbon dioxide, water, and light react to form glucose (a carbohydrate) and oxygen. Each year, photosynthesis is responsible for ten percent of the atmospheric carbon dioxide on earth being reduced to form glucose (Whitmarsh and Govindjee). Photosynthesis is essential for the life of the cell because it provides energy for the cell to do all of its biological needs. Photosynthesis is also really important for other living organisms, including humans, because the waste product of photosynthesis is oxygen, which is essential for life of most living things. Photosynthesis creates two compounds, adenosine triphosphate (ATP) and nicotinamide adenine di-nucleotide phosphate hydrogen (NADPH). ATP and NADPH are the “energy currency” of the cell (Whitmarsh and Govindjee). Photosynthesis occurs in two main processes, the light dependent reactions, and the dark reactions.
Photosynthesis is a series of light driven reactions that convert energy poor compounds such as carbon dioxide and water to energy rich sugars [1] such as glucose. The process generate an electron gradient across the membrane of a chloroplast, which is used for ATP synthesis, and simultaneously produces electrons used to make NADPH, using NADP+ as an energy carrier[2]. Crudely put, it is the method by which autotrophic plants make their own ‘food.’
Photosynthesis is the process in which plants, a select number of prokaryotes, and algae use solar energy and convert it into chemical energy. (Swarthout, 2010)The chemical energy is generally stored as glucose. Photosynthesis most notably occurs in the leaves of plants, more specifically, in the chloroplast. The Calvin Cycle and light reactions are two stages that occur in photosynthesis. In the light reactions, the solar energy is stored in the thylakoid membranes of the chloroplast, which then create ATP and NADPH. In the Calvin Cycle or dark reaction, chemical energy that is in the ATP and NADPH is utilized in order to convert CO2 into glucose. In both C3 and C4 plants, Rubisco, an enzyme, transforms CO2 which is used later on to create organic compounds such as glucose. (Marshall et al 2016) Carbon dioxide is used directly and as a result photorespiration occurs. This makes the photosynthesis of these plants less efficient. In C4 plants, a different pathway is used and produces carbohydrates more efficiently. (Marshall et al 2016)
Different colors of light affect the development of plants in different ways. The rate of photosynthesis of each plant will differ depending on the color of the light that is emitted on it. Once the carbon dioxide is produced it will react with the water in the aquatic system, thus producing carbonic acid. We measured the carbonic acid levels with the help of phenolphthalein and sodium hydroxide to conclude that the brighter the color of the light is, the faster the plant will photosynthesize, and thus the lower the carbonic concentration of the aqueous solution.
Photosynthesis is extremely important to life because it provide oxygen. Thirty percent of the oxygen that we use is produced by terrestrial plants, and the remaining seventy percent produced by single-celled algae and marine plants. ("Importance of photosynthesis," 2000)
Photosynthesis can be considered the most important chemical reaction on Earth. Most life on Earth is maintained using energy stored in the carbohydrate glucose produced by photosynthesis. Green plants contain chlorophylls, pigments, which have the ability to trap light energy. The trapped light energy is changed into chemical energy, which is stored in carbohydrates such as glucose (C6H12O6). Photosynthesis means building up, synthesis, and using light, photo. The raw materials for this process are carbon dioxide (CO2) gas from the atmosphere, and liquid water (H2O) obtained through the roots of land plants. A by-product of this process is oxygen (O2) gas, which
Photosynthesis and growth of most plants are stimulated by elevated atmospheric CO2 concentrations (Schortemeyer 2002). The continuous stimulation of photosynthesis in C3 plants by elevated CO2 increases the availability of carbohydrates and in doing so, alters the balance of C and N resources. The main C-N interactions proposed to influence responses to elevated CO2 include down-regulation of leaf N