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Ch. 9

Cellular Respiration

TermDefinition
Calorie the amount of energy needed to raise the temperature of 1 gram of water 1 degrees Celsius
Cellular respiration the process that releases energy from food in the presence of oxygen
Aerobic "in air"
Anaerobic "without air"
Glycolysis "sugar breaking" it involves chemical steps that transform of oxygen
NAD+ an electron carrier (Nicotinamide adenine dinucleotide)
Krebs cycle pyruvic acid is brokoen down into carbon dioxide in a serious of energy-extracting reactions
Matrix the innermost compartment of the mitochondrion and the site of the Krebs cycle reactions
Fermentation releases energy from food molecules by producing ATP
Where do organisms get the energy they need? food
What is cellular respiration? the process that releases energy from food in the presence of oxygen
Photosynthesis removes carbon dioxide from where? the atmosphere
What is transferred during glycolysis and what does it turn into? 1 molecule of glucose and a 6-carbon compound. 2 molecules of pyruvic acid and a 3-carbon compound
What is broken down in the Krebs cycle? Pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
The electron transport chain uses what from glycolysis and the Krebs cycle to convert ADP into ATP? high-energy electrons
What releases about 36 molecules of ATP per molecule of glucose? Glycolysis, the Krebs cycle, and the electron transport chain
In the absence of oxygen, fermentation releases energy from food molecules by producing what? ATP
For short, quick bursts of energy the body uses what already in muscles as well has what made by lactic acid fermentation? ATP, ATP
Cellular respiration is the only way to do what? continue generating a supply of ATP
Created by: leahwilcox
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