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- It is biochemical reactions that enable organisms to harness sunlight to manufacture organic molecules? It is a molecule whose high energy phosphate bonds power many biological processes? This is a disk-like structure that makes up the inner membrane of a chloroplast? These are plant pigments responsible for bright red, yellow and orange colors in many fruits and vegetables? These are photosynthetic pigments efficient at absorbing orange, red, yellow, and green light, wavelengths that are not well absorbed by chlorophyll a? TRUE OR FALSE A coupled reaction is a pair of reactions, one exothermic and one endothermic. ATP contains less energy than ADP. In the ATP-ADP cycle, when the phosphate is removed, energy is released. In coupled reaction, an endothermic reaction supplies the energy needed to drive an exothermic reaction. Chlorophyll absorbs green light.Light energy that is capture in photosynthesis is converted to ______ energy stored in chemical bonds of molecules. Potential Sound Solar Kinetic Why do photosynthesizes contain accessory pigments in addition to chlorophyll a? To reflect different wavelengths on the exterior of the photosynthetic organism. To filter light such that only photons of the right wavelength reach chlorophyll a. To absorb wavelengths of light that chlorophyll a cannon and extend the range of the wavelengths captured. To emit energy beyond the capability of the pigment chlorophyllIS THIS A GOOD BREAK DOWN? WHAT ELSE CAN I SHOULD I ADD? Briefly explain the light-dependent reactions of photosynthesis: where does this take place, what are the reactants and what is produced? Light-dependent reactions are used to convert light energy into chemical energy for use by the plants. Through the process of photosynthesis, the energy collected from the sun is broken down, along with water molecules, to produce NADPH and ATP. Light-dependent reactions Goal Convert light energy into chemical energy Location Chloroplasts—thylakoids Input Sunlight, H2O, NADP+, ADP Output NADPH, ATP, O2
- Chemiosmosis. ATP synthesis in chloroplasts is usually light dependent; it does not happen in the dark. When researchers shifted isolated chloroplasts from a low pH solution to a more alkaline (higher pH) solution, ATP synthesis occurred even in the absence of light! This was an experiment used to support the chemiosmosis mechanism of ATP formation in chloroplasts. Why? What would happen if the isolated chloroplasts were shifted to a lower pH solution? What would be the results if the above experiments were performed in the presence of light? If these experiments were performed in mitochondria instead of chloroplasts, what results would we expect?in 2005, a new species of green sulfur bacteria wasdiscovered near a geothermal vent at the bottom of the ocean. An exceptionally efficient light-harvesting mechanism allows these bacteria to carry out photosynthesis where the only illumination is a dim volcanic glow emanating from the vent. Cell membranes are required for electron transfer chains in the light-dependent reactions, but these bacteria have no internal membranes. How do you think they carry out the light-dependent reactions?What properties of photosynthetic pigments allow pigments to absorb light of only certain wavelengths? Select all that apply. Some pigment molecules lack a light-trapping region. Light of any energy level can boost an electron of the pigment molecule to a higher energy level in order to be absorbed. Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed. All pigment molecules possess a light-trapping region with a special structure that allows electrons to move freely between its atoms.
- You will create a slide show/ Canva/ Website on the flow chart of photosynthesis phases .Your poster should include, but is not limited to:○ The overall equation is at the top.○ A diagram of a chloroplast which indicates where each reactant is used and whereeach product is synthesized. ○ All intermediary steps were studied in the light-dependent reactions and light-independent reactions, in the form of a flow chart(try to add details around them), using appropriate terminology. ● You will also submit a detailed explanation of your flow chart, using appropriateterminology.In 2005, a new species of green sulfur bacteria was discovered near a geothermal vent at the bottom of the ocean. An exceptionally efficient light-harvesting mechanism allows these bacteria to carry out photosynthesis where the only illumination is a dim volcanic glow emanating from the vent. Cell membrane are required for electron transfer chains in the light-dependent reactions. but these bacteria have no internal membranes. How do you think they carry out the light-dependent reactions?Cell respiration and photosynthesis are distinct metabolic processes that take place in the mitochondrion and chloroplast, respectively. While these two processes are separate, they share things in common. When one looks at the overall equations for cell respiration and photosynthesis, one sees how they are near opposites in terms of the starting and ending materials. In 300-400 words, describe this “near opposite” relationship between cell respiration and photosynthesis. What are the starting and ending materials in each process, and what kind of energy transformation is taking place?
- What is the difference between resonance energy transfer and photoinduced charge separation? In photoinduced charge separation, an excited electron moves from accessory pigments to the light-harvesting complex. In resonance energy transfer, an excited electron is transferred to a nearby molecule. Photoinduced charge separation of pigments in the light-harvesting complex drives the resonance energy transfer in a reaction center. In resonance energy transfer, the energy of electron excitement is transferred only to an appropriate acceptor. Resonance energy transfer from pigments of a light-harvesting complex drives the photoinduced charge separation in a reaction center.The processes involved in Photosynthesis and Cellular Respiration have many differences in the molecules, enzymes and pathways involved. In addition, locations where these reactions occur are different for Photosynthesis and Cellular Respiration. There are also certain molecules and pathways that are different/unique. Describe the differences between Photosynthesis and Cellular Respiration. Each difference statement should have a description of the location / process / reaction / product / reactant / intermediate found in photosynthesis which you then compare that to a similar situation in cellular respiration. 350 word minimumWhy do the reaction centers have different pigments rather than only the chlorophyls? quantitatively increasing the absorption photons narrowing coverage of the visible spectrum light increasing coverage of the visible spectrum light arranging light-harvesting complexe compensating for the high density of chlorophyll