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).
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.
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.
This causes the excitation of two electrons, and they move to a higher energy level. These high-energy electrons move along electron transport chains in a series of redox reactions, releasing energy which activates the enzyme ATPase required in the production of ATP. Reduced NADP (NADPH) is also formed during the light-dependent reaction. The products ATP and reduced NADP from the light-dependent reaction are then used in the light-independent stage of photosynthesis (aka the Calvin cycle). Both ATP and NADPH are responsible for the reduction of glycerate-3-phosphate into triose phosphate, which is converted into many useful organic compounds like carbohydrates, mainly glucose.
1. In the inner membrane of the mitochondrion, there is an electron transport chain. The membrane increases the surface area so a lot more copies of the chain can exist. Within the mitochondrion, there are ATP synthase that makes ATP out of ADP and inorganic phosphate. The ATP synthase is located inside the chloroplast for photosynthesis.
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. Together with the electrons, the hydrogen ions are used to reduce NADP in the light-dependent reaction in the thylakoid. The hydrogen
This is the molecule which makes photosynthesis possible, by passing its energized electrons on to molecules which will manufacture sugars. All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll "a". A second kind of chlorophyll is chlorophyll "b", which occurs only in “green algae” and in the plants. Bibliography: http://www.ucmp.berkeley.edu/glossary/gloss3/pigments.html Conclusion: I learned various things from this lab. For instance, I learned how pigments absorbed strongly move slowly and pigments absorbed weakly move the fastest.
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.
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 waste product oxygen, which is used by humans for breathing. Without being able to photosynthesise plants will stop growing and die. In a plant growing in the dark the chlorophyll will slowly be destroyed causing them to use their food reserves.
Form structural components in cells and tissues. Photosynthesis is a complex series of reactions carried out by algae, phytoplankton, and the leaves in plants, which utilize the energy from the sun. The simplified version of this chemical reaction is to utilize carbon dioxide molecules from the air and water molecules and the energy from the sun to produce a simple sugar such as glucose and oxygen molecules as a