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Photosynthesis

Definitions and information related to the process of photosynthesis

QuestionAnswer
What is an AUTOTROPH? Organisms that use energy from sunlight or inorganic substances to make organic compounds. (make own food)
What is a HETEROTROPH? Organisms that must get energy from food instead of directly from sunlight or inorganic substances. (need outside food for energy)
What is PHOTOSYNTHESIS? The process plants use to trap the sun’s energy and build carbohydrates
What is the EQUATION for photosynthesis? 6CO2 + 6H2O + Sunlight -------> C6H12O6+ 6O2 + ATP
What are the LIGHT DEPENDENT REACTIONS? The 2 phases of photosynthesis where light energy is converted to chemical energy in the form of ATP.
What are THYLAKOIDS? Internal disk-shaped structure of a chloroplast that contains the pigment chlorophyll
What is CHLOROPHYLL? The green pigment responsible for trapping light energy in photosynthesis
What is the ELECTRON TRANSPORT CHAIN? Series of molecules through which electrons are passed to make ATP (energy).
What is NADP+? Electron carrier molecule; when carrying excited electrons it becomes NADPH
What is the LIGHT INDEPENDENT REACTION? (DARK REACTION) Phase of photosynthesis where energy from light-dependent reactions is used to produce glucose and additional ATP molecules.
What is the CALVIN CYCLE? Series of reactions that use carbon dioxide to form carbohydrates (glucose)
What is the FIRST PHASE of Photosynthesis? Light is absorbed by chlorophyll.
What is SECOND PHASE of Photosynthesis? Light energy is converted to chemical energy by passing through the electron transport chain.
What is the THIRD PHASE of Photosynthesis? Inorganic CO2 is converted into glucose (and other carbohydrates) during the Calvin Cycle.
What happens to WATER during the second phase of photosynthesis? The water molecule is split. Hydrogen is used in the Electron Transport Chain and Oxygen is released.
What happens to the CARBON DIOXIDE that is absorbed? The CO2 is split and the carbon is used to create glucose and more oxygen is released.
Created by: katdiver
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