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Cellular respiration Ch. 9
Cellular Respiration Vocab.
19
Biology
Not Applicable
10/15/2007

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Term
Calorie
Definition
Amount of energy needed to raise the temperature of 1 g. of water by 1 degree
Term
Glycolysis
Definition
first step in releasing the energy of glucose, in which a molecule of glucose, in which a molecule of glucose is broken down into 2 molecules of pyruvic acid
Term
Cellular Respiration
Definition
Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
Term
NAD+ (Nicotinamide adenine dinucleotide)
Definition
Electron carrier involved in glycolysis
Term
Fermentation
Definition
process by whick cells release energy in the absence of oxygen
Term
Anaerobic
Definition
Process that does not require oxygen
Term
Aerobic
Definition
Process that requires oxygen
Term
Krebs cycle
Definition
Second Stage of cellular respiation, in which pyruvic acid is broken down into carbon dioxide in a series of energy extracting reactions
Term
Electron Transport Chain
Definition
A series of proteins in which the high energy electrons from the Krebs cycle are used to convert ADP into ATP
Term
Autotroph
Definition
Organism that can capture energy from sunlight or chemicals and use it o produce it's own food from inorganic compounds, also called a producer
Term
Heterotroph
Definition
Organism that obtains energy from the food it comsumes, also called a consumer
Term
Mitochondrion
Definition
Cell organelle that converts the chemical energy stored in food in to compunds that are more convenient for the cell to use
Term
ATP
Definition
Stores and releases energy
Term
NADH
Definition
Holds electrons until they can be transferred to other molecules
Term
Alcoholic Fermentation
Definition
Produces alcohol and carbon dioxide
Term
Lactic Acid Fermentation
Definition
Pyruvic acid from glycolisis is converted into lactic acid
Term
Pyruvic Acid
Definition
accumulates as a result of glycolisis
Term
Hans Krebs
Definition
Won 1953 Nobel Prize for discovering the Krebs Cycle
Term
PADH2
Definition
Similar to NAD+ and NADH
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