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Unit 6 Lesson 4

Photosynthesis: Energy Conversion

TermDefinition
ADP a lower, energy, intermediate molecule used to convert to ATP by adding a third phosphate
ATP a molecule that carries energy inside cells and is the energy currency of a cell; a product of the light-dependent reactions of photosynthesis
ATP synthase a protein that creates ATP from ADP during photosynthesis
chlorophyll green pigment that captures the energy from the sun
chloroplast organelle in a green plant cell that conducts photosynthesis
electron transport chain system by which high-energy electrons are moved to photosystem I and hydrogen ions are pumped into the inside of the thylakoid during photosynthesis
light-dependent reactions a series of reactions that take the light energy that is captured by the chlorophyll and convert it into chemical energy in the form of NADPH and ATP
light-independent reactions aka the Calvin cycle; a series of reactions that do not require the presence of light energy and that take the carbon from carbon dioxide and convert it to glucose, amino acids, and other compounds
NADP+ an electron carrier molecule that accepts two high-energy electrons and one hydrogen ion to become NADPH
NADPH a product of the light-dependent reactions of photosynthesis used to power some of the reactions in the light-independent stage of photosynthesis
photosynthesis process that transforms light energy into stored chemical energy
photosystem I protein complex where the transfer of hydrogen ions to NADP+ to make NADPH occurs during photosynthesis
photosystem II protein complex where light is absorbed, water is split, hydrogen ions are created, and oxygen is released during photosynthesis
stroma fluid-filled space that surrounds the stacks of thylakoids inside the chloroplast, within which the light-independent reactions of photosynthesis occur
thylakoid sack-like structure surrounded by a membrane inside chloroplasts where the light-dependent reactions of photosynthesis occur
Created by: atrang
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