The light-independent reactions of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. are chloroplasts more likely in animal or plant cells? Dark reactions. Flashcards. (i) Oxygenic photosynthesis (with evolution of O 2) takes place in green eukaryotes and cyanobacteria (blue-green algae). Photosynthesis takes place inside plant cells in small things called chloroplasts. Photosynthesis takes place through several steps which occur during two stages: the light phase and the dark phase. Dark reactions ( Enzymatic reactions ) is a group of reactions that occurs in the stroma of chloroplast in which the temperature is the limiting factor for the rate of photosynthesis, so , these reactions can occur in both the light and darkness . Write. chloroplast. Doesn't directly need light in order to occur, but it does need the products of the light reaction (ATP and another chemical called NADPH). (ii) An oxygenic photosynthesis (without the evolution of O 2) takes place in photosynthetic bacteria. STUDY. Match. Gravity. Photosynthetic Pigments: Learn. While the light reaction takes place in the thylakoid membranes, the ATP and NADPH it produces end up in the stroma. But it still happens during the day. The Calvin cycle is sometimes also called the dark reaction because none of its steps require light. Photosynthesis: Light and Dark Reactions. This phase requires sunlight. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen. 2) Which molecule will be able to be produced by this mechanism?, Photosynthetic Units/ Pigments, , Introduction 1) Why is this called the light reaction? The two successive stages in which photosynthesis takes place are: The Light-dependent reactions; The Calvin Cycle, or the light-independent reactions; Let’s have a detailed look at these stages: The Light-dependent Reactions. During dark reaction assimilatory power is utilized to synthesize glucose. Dark Reactions Takes place in the stroma within the chloroplast, and converts CO 2 to sugar. Dark reaction of Photosynthesis is light independent reaction, hence it takes place both in the light as well as in dark - the reaction is known as Calvin cycle - where the co2 is fixed. The process of photosynthesis is basically divided into two steps i.e Light reactions and dark reactions (known as Calvin cycle or #C_3# pathway). But what is the main purpose of this? That’s because it needs the energy produced by the light reaction that comes before it. These reactions occur in the stroma of the chloroplast. The dark reaction doesn't require sunlight to work. Terms in this set (37) in what organelle does photosynthesis take place? Created by. This is where plants can get the raw materials for photosynthesis all in one convenient location. Photosynthesis takes place in two stages, namely light-dependent reactions and light-independent reactions. PLAY. n plants, photosynthesis usually occurs in the leaves. Spell. Structure of a mesophyll cell. Photosynthesis, Light Reaction, Dark Reaction - Coggle Diagram: Photosynthesis (Introduction), Light Reaction (Electron Transport System 1) This is basically the downhill movement of an excited electron. This second phase of photosynthesis takes the atoms of the chemical energy created in the thylakoids and changes them into simple sugars that can be used or stored by the plant, depending on its energy needs. This reaction takes place in another section in the stroma. 2. Charlotte_Davis39. Light-independent reaction is also called the dark reaction or the Calvin cycle. The dark reaction involves a cycle called the Calvin cycle in which CO 2 and energy from ATP are used to form sugar. Structure of a mesophyll cell The first phase of photosynthesis is the light-dependent reactions. 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