describe the light dependent and light independent reactions of photosynthesis

Suppose you wanted to develop a light to help increase plant growth. Only one molecule of CO2 is actually added to the Calvin cycle at a time. The Calvin cycle. The diagram above - based on the Z-scheme - suggests the amount of energy in each compound and also partly explains their location in the membranes as energy, electrons, and H+ are passed between them, rather like a pinball game. After the energy from the sun is converted into chemical energy and temporarily stored in ATP and NADPH molecules (having lifespans of millionths of a second), photoautotrophs have the fuel needed to build multicarbon carbohydrate molecules, which can survive for hundreds of millions of years, for long-term energy storage. The energy is used in the light-independent reactions to produce sugars. Plant photosynthesis can be divided into two parts. 56007215-Previous-IB-Exam-Essay-Questions, University of Maryland, University College, Jeddah Private College • BUSINESS BUS 121, University of Maryland, University College • BIOL 101, Midwestern State University • HISTORY 101, ib_bio_previous_ib_exam_essay_questions (1).docx, Chief Sealth International High School • IB BIOLOGY HL, University of British Columbia • BIOL MISC. It is the process by which carbon dioxide and water are converted by plants and sunlight into the oxygen we breathe and the organic molecules (like glucose) that we consume. Pass the mouse pointer over this diagram for more information. There are four major protein complexes in the thylakoid membrane: Photosystem II, Cytochrome b6f complex, Photosystem I, and ATP synthase. The purpose of light-dependent reactions is to convert light energy into chemical energy in … To start, carbon dioxide combines with ribulose bisphosphate (RuBP) to produce two molecules of glycerate 3-phosphate (GP). It's actually occurring simultaneously with the light reactions. It takes place in the thylakoid of the chloroplasts. Both the light-dependent reactions and the Calvin cycle Light-dependent reactions Calvin cycle require water synthesize ATP and NADPH use CO2 produce sugars need ribulose bisphosphate use chlorophyll to capture light energy take place in the chloroplasts of plants generate oxygen gas Incorrect. In the first part of photosynthesis, the light-dependent reaction, pigment molecules absorb energy from sunlight. Light-dependent reactions ; Light-independent reactions ; The light-dependent reactions of photosynthesis. Photosynthesis occurs in two parts—the light-dependent reactions and the light-independent reactions. If a cell’s need for ATP is significantly greater than its need for NADPH, it may bypass the production of reducing power through cyclic photophosphorylation. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. Why would an organism perform cyclic phosphorylation instead of noncyclic phosphorylation? 6.4: Photosynthesis and the Importance of Light, [ "article:topic", "Photosynthesis", "authorname:openstax", "photosynthetic pigments", "Photosystems", "light-harvesting complex", "light-dependent reactions", "oxygenic photosynthesis", "anoxygenic photosynthesis", "Noncyclic photophosphorylation", "cyclic photophosphorylation", "light-independent reactions", "showtoc:no", "license:ccby", "transcluded:yes", "source[1]-bio-5317" ], https://bio.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fbio.libretexts.org%2FCourses%2FMansfield_University_of_Pennsylvania%2FBSC_3271%253A_Microbiology_for_Health_Sciences_Sp21_(Kagle)%2F06%253A_Fueling_and_Building_Cells%2F6.04%253A_Photosynthesis_and_the_Importance_of_Light, Photosynthetic Structures in Eukaryotes and Prokaryotes, https://openstax.org/books/microbiology/pages/1-introduction, Describe the function and locations of photosynthetic pigments in eukaryotes and prokaryotes, Describe the major products of the light-dependent and light-independent reactions, Describe the reactions that produce glucose in a photosynthetic cell, Compare and contrast cyclic and noncyclic photophosphorylation. 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