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AP Biology Unit 6.2 - Cellular Respiration and Fermentation Flashcards

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9895788090MetabolismThe sum of all chemical processes that occur in an organism0
9895788091Metabolic PathwaySeries of enzyme-mediated reactions by which cells build, remodel, or break down an organic molecule1
9895788092CatabolismMetabolic pathways that break down molecules, releasing energy.2
9895788093AnabolismMetabolic pathways that construct molecules, requiring energy.3
9895788094Anaerobic GlycolysisTransformation of glucose to pyruvate when limited amounts of oxygen (O2) are available; occurs in cytoplasm of cells.4
9895788095Alcoholic FermentationForm of anaerobic respiration (often carried out by yeast) that produces ethanol from pyruvate under low oxygen conditions5
9895788096PyruvateThree-carbon compound that forms as an end product of glycolysis.6
9895788097Lactic Acid FermentationForm of anaerobic respiration (often carried out during strenuous exercise) that produces lactate from pyruvate under low oxygen conditions7
9895788098LactateProduced in muscles when glucose is broken down anaerobically during strenuous muscular activity8
9895788100EthanolAlcohol formed by microbial fermentation of carbohydrates.9
9895788101Facultative AnaerobeOrganism that can survive with or without oxygen10
9895788102Obligate AnaerobeOrganism that cannot live in the presence of oxygen11
9895788103Cellular RespirationOverall pathway in which organic molecules are broken down to release energy for use by the cell12
9895788104MitochondriaPowerhouse of the cell, organelle that is the site of ATP (energy) production13
9895788105CristaeThe folds of the inner membrane of a mitochondrion14
9895788106Intermembrane SpaceThe fluid filled space between the inner and outer mitochondrial membranes15
9895788107MatrixThe inner region of the mitochondrion, where the Krebs cycle occurs16
9895788108Acetyl CoAIn the mitochondria, pyruvate is converted into this molecule, which then enters the Kreb's Cycle17
9895788109Krebs Cycle1st stage of aerobic cell respiration; pyruvate is converted into acetyl CoA, which is broken down into carbon dioxide and ATP; also called the Citric Acid Cycle18
9895788110NADHThe reduced form of NAD+; an electron-carrying molecule that functions in cellular respiration19
9895788111FADH2The reduced form of FAD+; an electron-carrying molecule that functions in cellular respiration20
9895788112Electron Transport ChainSeries of proteins through which electrons are passed to make ATP21
9895788113ChemiosmosisA process for making ATP by ATP Synthase using the energy stored in an electrochemical gradient of hydrogen ions.22
9895788114ATP SynthaseEnzyme that catalyzes the reaction that adds a high-energy phosphate group to ADP to form ATP during chemiosmosis23

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