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Lecture 9

Cellular Respiration

QuestionAnswer
Chemoheterotroph An organism that requires organic molecules for both energy and carbon
Oxidation Complete or partial loss of electrons from a substance involved in a redox reaction
Reduction Complete or partial addition of electrons to a substance involved in a redox reaction
Cellular Respiration Catabolic pathways of aerobic and anaerobic respiration, which break down organic molecules and use an electron transport chain for he production of ATP
Electronegativity The attraction of a given atom for the electrons of a covalent bond
Glycolysis Reactions that split up glucose into pyruvate
Phosphorylation Addition of a phosphate group (PO4) to a protein
Hexokinase Enzyme that phosphorylates hexoses
Phosphofructokinase Enzyme that phosphorylates fructose 6-phosphate in glycolysis
NADH Catalyzes the transfer of electrons from NAPH to coenzyme Q
Kreb's Cycle/Citric Acid Cycle Completes the metabolic breakdown of glucose molecules. Occurs within the mitochondria
Chemeosmosis Energy coupling mechanism that uses energy stored in H+ gradient across membrane to drive cellular work
ATP synthase Functions in chemeosmosis with electron transport chains. Uses the energy of H+ gradient to make ATP
Feedback Inhibition Metabolic control in which end product of a metabolic pathway acts as an inhibitor
ETC Sequence of electron carrier molecules that shuttle electrons down a series of redox reactions. Used to make ATP
Active Transport Movement of a substance arose cell membrane against its concentration
Created by: 831425276
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