The reactants and products of the light reactions. Explain how light supports the light reactions within the photosystems. Explain how the ETC works within the light reactions of photosynthesis
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- Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?Identify the chemical basis for ApH and AY across the chloroplast thylakoid membrane by dragging the descriptions to their targets. Be sure to notice that the upper arrow iindicates ApH and the lower arrow indicates ΔΨ. ATP synthase complex H+ N ADP + P₁ Light energy ATP H*N Photosystem I/II- Chloroplast N side Aus PN ApH T + Thylakoid membrane HTp H+p Lumen Stroma P side Proton circuit A B High H concentration Low positive charge High positive charge Low H+ concentration Within the image, identify the types of proton translocation by dragging each label to its target. O XH₂ 2H+ + Z 2 H* ZH₂ O XH₂ Z 2H+ ZH₂ 2H+ C A B Proton pump Redox loopDiagram 41 The Light Reactions of Photosynthesis STROMA Poteyte Potayate mples HAD Light HLARO ACE (high ir Carto Thylakold membrane ATP ynthase STROMA ow N concentration) ADP Diagram 4 shows a single thylakoid membrane taken from a chloroplast inside of a leaf cell. The events of the light dependent cycle that take place along the thylakoid membrane are shown. Identify an energy transfer that takes place n Diagram 4. Light energy is directly transferred into the chemical bonds of sugar. O Light energy is directly transferred into the chemical bonds of ATP The energy of the bonds of water are transferred into the chemical bonds of ATP. The energy from an excited electron is transferred into the chemical bonds of NADPH.
- Explain in detail of the stages of photosynthesis without explaining all the reactions of each pathways, but state the key steps of each pathway. Mention the location where each pathway happens in the plant and lastly make a table of the products formed at the end of the stage (ATPs, NADPHs, and water). Discuss about the oxidation-reduction of various molecules that are a part of these pathways.Discuss in detail photorespiration in plants.naam te gee / Using the light microscrope, compile neat and accurate drawings of each leaf with the C3 and C4 photosynthetic routes, and highlight the functional and anatomical features. Please annotate the following: Epidermis, mesophyll (palisade and spongy), stomata, vascular bundles (xylem and phloem), bundle sheaths, chloroplasts, air spaces, Krantz anatomy. Remember to name your drawings.
- How is the energy from the sun transported within chloroplasts and ultimately used to createNADPH and ATP? What would happen if you forgot to water your plant for several days? Whatif a plant were only exposed to read light – would photosynthesis be possible? Support youranswer with details of the processes involved.Briefly describe the pigments used in photosynthesis, where these pigments are located in the plant, and what these pigments do. Define both absorption spectrum and action spectrum, and describe the purpose of using a spectrophotometer to determine the absorption spectrum and how that correlates to the action spectrum. Be sure to discuss how the spectrophotometer allows the identification of the pigment solutions.How is the energy from the sun transported within chloroplasts and ultimately used to createNADPH and ATP? What would happen if you forgot to water your plant for several days? Whatif a plant were only exposed to read light – would photosynthesis be possible? Support youranswer with details of the processes involved. *I asked this question before and i didn't get an answer. please answer the question i asked how it's asked don't answer a question you wish i had asked.
- Which of the following is TRUE about CAM photosynthetic pathway? Compared to the C3 and C4 pathways, CAM photosynthesis results in greater transpiration and water loss. O By separating where carbon is initially fixed inside the leaf tissue, CAM plants can better control the gradient of carbon dioxide between the air and their leaves. CAM photosynthesis is more energy efficient than C3 photosynthesis. Compared to C3 and C4 photosynthetic pathways, the rate of CAM photosynthesis is limited.What stages of the light-dependent reactions occur prior to the buildup of hydrogen ions in the thylakoid compartment? Select all that apply. Energy emitted by the electron transport chain triggered by PSII generates a hydrogen ion gradient across the thylakoid membrane. PSII pulls replacement electrons from water molecules, which then break apart into oxygen atoms and hydrogen ions. A photosystem II (PSII) absorbs light energy and releases an electron. Electrons released from PSII enter an electron transport chain in the thylakoid membrane. A flow of hydrogen ions causes ATP synthase to phosphorylate ATP.For most plants, two distinct photosystems (Photosystem I and Photosystem II) work together in series during photosynthesis. These photosystems are complexes of proteins and pigment molecules. Statement 1: Photosystem I has an absorption maximum of 680 nm, whereas Photosystem II has an absorption maximum of 700 nm. Statement 2: The special pair of chlorophyll a molecules in the reaction center of photosystem I is designated as P700, whereas the special pair of chlorophyll a molecules in the reaction center of photosystem II is designated as P680. Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true. Both statements are true. Both statements are false.