Ch.6 Interactive glossary Flashcards
A biochemical process in which amino groups are enzymatically removed from amino acids or other organic compound.
Deamination
A biochemical process in which light energy is converted to chemical energy and used in carbohydrate synthesis.
Photosynthesis
A catabolic process that produces lactic acid during the reoxidation of NADH to NAD+ for reuse in glycolysis to generate ATP.
Lactic acid fermentation
A catabolic, energy-releasing process.
Exergonic reaction
A chemical process that requires energy
Endergonic
A cyclic series of enzyme-catalyzed reactions in which carbon from acetyl-CoA is released as carbon dioxide; the reactions also yield protons and high-energy electrons that are transported among coenzymes and cytochromes as their energy is released.
Krebs cycle
A form of photosynthesis in which molecular oxygen is produced.
Oxygenic photosynthesis
A form of photosynthesis in which molecular oxyten is not produced.
Anoxygenic photosynthesis
A group of pigments that act as a light trapping system for photosynthesis.
Photosystem
A metabolic pathway in which acetyl groups are completely oxidized to carbon dioxide gas and some ATP molecules are formed. Also called Krebs cycle.
Citric acid cycle
A microorganism or virus that causes disease.
Pathogen
A pigment located in the membrane systems of purple sulfur bacteria that upon excitement by light, loses electrons and initiates photosynthetic reactions.
Bacteriochlorophyll
A pigmented molecule that functions in photosynthesis; exists free in the cytoplasm of prokaryotes and within the chloroplasts of eukaryotes.
Chlorophyll
A reaction in the first part of photosynthesis where light energy is converted into chemical energy in the form of ATP.
Energy-fixing reactions
A reusable protein molecule that brings about a chemical change while remaining unchanged itself; the molecule may include a nonprotein part.
Enzyme
A series of enzyme-catalyzed chemical reactions in which glucose is broken down into two molecules of pyruvate with a net gain of two ATP molecules.
Glycolysis
A series of sequential steps in which energy is released from electrons as they pass from coenzymes to cytochromes, and ultimately, to oxygen gas; the energy is used to combine phosphate ions with ADP molecules to form ATP molecules.
Oxidative phosphorylation
A six-carbon sugar used as a major energy source for metabolism.
Glucose
A small, organic molecule of cellular respiration that functions in release of carbon dioxide gas and the transfer of electrons and protons to another coenzyme.
Coenzyme A (CoA)
A substance or substances resulting from a chemical reaction.
Product
A type of heterotrophic organism that feeds on dead organic matter, such as rotting wood or compost.
Saprobe
A type of heterotrophic organism that feeds on live organic matter such as another organism.
Parasite
An anabolic, energy-requiring process.
Endergonic reaction
An electron carrier that is part of oxidation phosphorylation.
Cytochrome
An energy-liberating process in which larger organic compounds are broken down into smaller ones
Catabolism