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Cell Energetics
N/A
22
Biology
11th Grade
02/03/2009

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Term
Combustion
Definition
-rapid release of energy when burning a hydrocarbon (CnH2non)
Term
Respiration
Definition
-breakdown of glucose with the use of oxygen to produce ATP (cellular energy)
C6H12O6+6O2→6CO2+6H20+38ATP
Term
Breathing
Definition
-taking of O2 and release of CO2
Term
Glycolysis
Definition
-the splitting of sugar (breaking down glucose)
-Occurs in cytoplasm
-R=Glucose
-P=Pyruic acid
-All cells use this to produce energy
-Glucose (C6H1206)
-Break down to 2 pyruvic acid (3C)
-needs 2 ATP to start
-sub-reactions
-happens in cytoplasm
-net = 2ATP
Term
Chemical Grooming (Acetyl co-A Production)
Definition
• Occurs in cytoplasm
• R→Pyruic acid
• P→Acetyl co-A (coenzyme A)
Term
Kreb’s Cycle (citric acid cycle)
Definition
-final breakdown of glucose
• Occurs inside the Matrix of the mitochondria
• R→citric acid
• P→oxaloacetic acid
Term
Electron Transport Chain
Definition
-converts high energy electrons into ATP
• Occurs in the inner membrane
• R→NADH+H+,FADH2,ADP+P,O2
• P→H2O,NAD,FAD,ATP
Term
Glucose
Definition
• Carb
• Breaks down to ATP
• Glycolysis
• Pyruvic acid
Term
Alcohol Fermentation
Definition
-happens in yeast (causes airbubbles in bread and causes bread to rise) and bactria IN THE CYTOPLASM
• amount of sugar increases rising in bread
produces 2ATP, CO2, 2 Ethanol
Term
Oxidation/reduction (cellular respiration)
Definition
oxi: the loosing of electrons
red:the gaining of electrons C6H12O6+6O2→6CO2+6H20
oxi-->glucose to C02
red-->oxygen to H20
Term
ATP
Definition
-adenosine triphosphate
-used in the mitochondria and as cell's main energy suply
Term
NAD
Definition
-coenzyme
-hydrogen transport molecule
-used in the subreactions
Term
FAD
Definition
-coenzyme
-a hydrogen acceptor molecule
-used in the Kreb's Cycle
Term
Respiration vs Breathing
Definition
-Respiration is the breakdown of glucose using 02 to produce ATP
-Breathing is the taking of 02 and releasing of C02
Term
Aerobic vs Anaerobic respiration
Definition
-aerobic requires 02 and produces 38 ATP
-anaerobic doesnt require 02 and produces 2 ATP in both alcohol fermentation and lactic acid fermentation
Term
Alcohol Fermentation
Definition
-an example of anaerobic respiration
-produces 2 ATP
-occurs in yeast
Term
Lactic Acid Fermentation
Definition
-an example of anaerobic respiration
-produces 2 ATP
-occurs in the muscles
Term
Four steps of cellular respiration
Definition
-Glycolysis
-Chemical grooming
-Kreb's cycle
-Electron transport chain
Term
Where is CO2 produced?
Definition
-chemical grooming
-Kreb cycle
-lactic acid fermentation
Term
Where is ATP produced?
Definition
-Glycolysis
-Kreb's cycle
-electron transport chain
-alcohol fermentation
-lactic acid fermentation
Term
Where is NADH produced?
Definition
-glycolysis
-chemical grooming
-kreb cycle
Term
Where is FADH2 produced?
Definition
-kreb cycle
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