Photosynthesis is the process where light energy is converted into chemical energy in the form of glucose. Its overall equation is: 6CO2 + 6H20 + light energy C6H12O6 + 6O2. The process of photosynthesis can be split into two reactions: the light-dependent reaction in the thylakoids and the light-independent reaction in the stroma. During the light-dependent reaction, light energy from the Sun is absorbed by chlorophyll (found in the chloroplasts in the leaf). This causes the excitation of two electrons, and they move to a higher energy level.
According to Hopkins (2006), photosynthesis is the process by which green plants and certain organisms transform itself from light energy into chemical energy. As a straight forward chemical reaction in which carbon dioxide comes from the air, along with the midair and water from the soil, photosynthesis conglomerates to produce what is known as carbohydrate (p. 6). Solar Energy produced by photosynthesis, stores itself in a chemical bond of a carbohydrate molecule. Sugar known as glucose is then formed which becomes convenient both by way of energy to be stored for later use in tissues or by way of carbon to be used for cells (p.7). Hopkins, w. G. (2006).
Plant Pigments Depending on Photosynthesis. Is the rate of photosynthesis faster when there are extreme light and temperatures present? Paper chromatography is a technique used for separating and identifying pigments. The solvent DPIP, (2, 6-dichlorophenol-indophenol), which is often used to substitute for NADPH, moves up the paper by capillary action. As the solvent moves up the paper, it carries along any substances dissolved in it, which are the pigments.
Plants are the producers for an ecosystem. They photosynthesise carbon dioxide and water and produce energy in the form of carbohydrates and other molecules. Photosynthesis requires water, and plants gain water from the soil using mineral ions such as nitrate produced by the nitrifying bacteria. Hydrolysis of ATP releases energy for processes such as active transport of the nitrate ions (and others such as potassium etc) from the soil into root hair cells, a process that lowers water potential and is used to draw water into the plant from the soil. In leaves, photosynthesis involves the photolysis of water, a process that involves the attachment of two electrons to a magnesium ion in chlorophyll and the production of hydrogen ions from the breakdown of water.
Photosynthesis is the process when plants and some bacteria use the sun lights energy to produce glucose from carbon dioxide and water. carbon dioxide + water- sunlight- glucose + oxygen Energy in the form of light is the definition of electromagnetic energy. Any visible light like light bulbs, electromagnetic energy can take the form of it. The energy is being absorbed to break bonds making the process endothermic. When energy is being released making new bonds formed is called the exothermic process.
In plants the way they get there energy is through sun light where they have process called photosynthesis where they produce and release oxygen in the air. Photosynthesis requires direct sunlight, carbon-dioxide, and water. In this process of photosynthesis, plants decompose the molecules of hydrogen and carbon dioxide into hydrogen, then carbon and oxygen produces glucose which forms their source of energy, food and growth. Solar cells similar to this process get sunlight where light in the form of photons hits the solar cell and are absorbed by semiconducting materials such as silicon. Negative electrons are break free from their atoms, causing them with an electric potential difference.
The energy needed for photosynthesis comes from sunlight, which is the variable for this experiment. The substance that absorbs sunlight is chlorophyll, which is mainly contained in chloroplasts. This energy is used to convert carbon dioxide (CO2) and water into sugars. This conversion creates the
Gabriella Armstrong An Experiment Investigating the Rate of Photosynthesis in a Water Plant Introduction Photosynthesis is the process in which carbon dioxide and water are converted into glucose and oxygen. The reaction requires light energy, which is absorbed by chlorophyll. This process can be represented using an equation: Carbon dioxide + Water (+ light energy) → Glucose + Oxygen Research Question The objective of the experiment was to find out if light intensity affects the rate of photosynthesis in aquatic plants that are naturally found in water. This would be observed by the amount of oxygen bubbles released in water during photosynthesis. By shining a light at different distances to the Elodea plant a trend may be observed between light and the rate of photosynthesis.
These amazing organisms are capable of capturing the energy of sunlight and fixing it in the form of potential chemical energy in organic compounds.” (Measuring the rate of photosynthesis) “Light is one of the main factors that affects the rate of photosynthesis, which literally means using light to create something new.” (What Are Three Factors That Affect the Rate Which Photosynthesis Occurs?) This experiment was to compare how the Elodea photosynthesized when absorbing different colors of light, and to measure the absorbance from 500 nm of wavelength to 750 nm. Based on three types of pigments that are present in plants: chlorophyll, carotenoids, and phycobilins, it was predicted that both of the rates of photosynthesis and the absorbance of different wavelengths were high under the colors of violet-blue or orange-red, while rates were low under the light color of green-yellow. Materials and Procedures: The materials used for this experiment were as follows: Elodea leaves (that have been kept in the dark), spinach leaves, blender, cheesecloth, spectrophotometer, cuvettes, beakers, large test tube, 5% sodium bicarbonate, Kimwipes, razor blade, tape, 100 mL graduated cylinder, graduated pipettes with rubber tubings, light source, ring stands and clamps, cellpphane paper. In activity 2a, green test tube was clamped to a ring stand, and filled three quarters to the top with 5% sodium bicarbonate.
Effect of light intensity on photosynthesis Planning What was the aim of your experiment? To find the effect of light intensity on the rate of photosynthesis. Draw a labelled diagram of the equipment you need What did you measure? The colour of the indicator which tells us the amount of carbon dioxide used by the plant. Describe how you carried out your investigation?