Photosynthesis, Photosynthesis and cellular respiration, Biology notes


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We'll trace how light energy is absorbed by pigment molecules, how reaction center pigments pass excited electrons to an electron transport chain, and how the energetically "downhill" flow of electrons leads to synthesis of ATP and NADPH. These molecules store energy for use in the next stage of photosynthesis: the Calvin cycle.


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Photosynthesis - Electron Pathway, Chloroplasts, Light Reactions: The general features of a widely accepted mechanism for photoelectron transfer, in which two light reactions (light reaction I and light reaction II) occur during the transfer of electrons from water to carbon dioxide, were proposed by Robert Hill and Fay Bendall in 1960. This mechanism is based on the relative potential (in.


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Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.


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As it turns out, the atoms of carbon in your body were once part of carbon dioxide ( CO 2 ) molecules in the air. Carbon atoms end up in you, and in other life forms, thanks to the second stage of photosynthesis, known as the Calvin cycle (or the light-independent reactions ).


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Knowledge Photosynthesis Diagram - Process of Energy Transformation The secret of nature What is Photosynthesis? Photosynthesis is a process where the living organisms, typically the plants, take in the Sunlight, consume it, process it, and then utilize it as a fuel to function correctly.


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This article will introduce the process of photosynthesis, how it works, and how to draw a flowchart to represent the workflow inside the plant when photosynthesis happens. Part 1: What is Photosynthesis Part 2: Process of Photosynthesis Part 3: Photosynthesis Flowchart Part 1: What is Photosynthesis


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Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a biological process used by many cellular organisms to convert light energy into chemical energy, which is stored in organic compounds that can later be metabolized through cellular respiration to fuel the organism's activities.


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This process illustrates oxygenic photosynthesis, wherein the first electron donor is water and oxygen is created as a waste product. Figure \(\PageIndex{1}\): Photosystem II: In the photosystem II (PSII) reaction center, energy from sunlight is used to extract electrons from water.. This flow of hydrogen ions through ATP synthase is called.


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Photosynthesis definition states that the process exclusively takes place in the chloroplasts through photosynthetic pigments such as chlorophyll a, chlorophyll b, carotene and xanthophyll. All green plants and a few other autotrophic organisms utilize photosynthesis to synthesize nutrients by using carbon dioxide, water and sunlight.


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Photosynthesis (Google doc) Most life on Earth depends on photosynthesis .The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O 2) and chemical energy stored in glucose (a sugar). Herbivores then obtain this energy by eating plants, and carnivores obtain it by eating.


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6CO2 + 6H2O ⇔ C6H12O6 + 6O2 (7.4.2) (7.4.2) 6 C O 2 + 6 H 2 O ⇔ C 6 H 12 O 6 + 6 O 2. (DGo = +687Kcal/mole) If respiration (reaction 1) is the complete oxidation of glucose to H2O and CO2, then photosynthesis (reaction 2) is the reduction of CO2 using electrons from H2O. Photosynthesis is thus an endergonic reaction.


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In chemical terms, photosynthesis is a light-energized oxidation-reduction process. (Oxidation refers to the removal of electrons from a molecule; reduction refers to the gain of electrons by a molecule.) In plant photosynthesis, the energy of light is used to drive the oxidation of water (H 2 O), producing oxygen gas (O 2 ), hydrogen ions (H.


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Create Your Photosynthesis Flowchart Now 1. What is Photosynthesis? In the word photosynthesis, "photo" which means light, "synthesis" means putting together. Photosynthesis is the process by which plants make their own food. Plants use light energy from the sun to make sugar and oxygen gas from carbon dioxide and water.


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The flow of hydrogen ions through ATP synthase is called chemiosmosis, because the ions move from an area of high to low concentration through a semi-permeable structure. Generating Another Energy Carrier: NADPH.. Photosynthesis forms a balanced energy cycle with the process of cellular respiration. Plants are capable of both photosynthesis.


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During photosynthesis, energy from sunlight is harvested and used to drive the synthesis of glucose from CO2 and H2O. By converting the energy of sunlight to a usable form of potential chemical energy, photosynthesis is the ultimate source of metabolic energy for all biological systems.. Cyclic electron flow has a lower yield, corresponding.


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Chloroplasts Capture Sunlight. Every second, the sun fuses over 600 million tons of hydrogen into 596 tons of helium, converting over 4 tons of helium (4.3 billion kg) into light and heat energy. Countless tiny packets of that light energy travel 93 million miles (150 million km) through space, and about 1% of the light which reaches the Earth's surface participates in photosynthesis.