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Chapter 6.1

Chapter 6.1 vocab

autotroph organisms that use energy form sunlight to from chemical bonds in inorganic substances to make organic compounds
photosynthesis most autotrophs use this process to convert light energy from the sun into chemical energy in the form of organics compounds
heterotroph animals and other organisms that must get energy from food instead of directly from sunlight or inorganic substances
light reactions the first stage of photosynthesis ; they require light to happen
thylakoid a system of membranes inside the inner membrane that are arranged as flattened sacs
chloroplasts organelles found in cells of plants and algae
granum the thylakoids that are connected, and layered to form these stacks
stroma the solution surrounding the grana
pigment compounds that absorb light
chlorophyll a green pigment that is present in most plant cells, that gives plants their characteristic green color, and that reacts with sunlight, carbon dioxide, and water to form carbohydrates
carotenoid a class of pigments that are present mostly in plants and that aid in photosynthesis
photosystem each cluster of pigment molecules and the proteins that the pigment molecules are embedded in are referred to
primary electron acceptor the acceptor of the electrons lost from chlorophyll a is a molecule in the thylakoid membrane called _______________
electron transport chain a series of molecules located in the thylakoid membrane that transfer electrons from one molecule to the next
chemiosmosis in chloroplasts and mitochondria, a process in which the movement or protons down their concentration gradient cross a membrane is coupled to the synthesis of ATP
Created by: CoffeyM20