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Section 6: Cellular Respiration
6.1-6.4
58
Biology
Undergraduate 1
10/12/2012

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Term
Cristae
Definition
the extensive folds in teh inner membrane of the mitochondria
Term
Priming Reaction
Definition
the first step in glycolysis where a phosphate group is added to glucose using ATP
Term
Mitochondiral Matrix
Definition
fluid-filled region inside the inner membrane of the mitochondria
Term
NAD+(H)
Definition
donates electrons and protons in the ETC to create a proton gradient and produce 3ATPs because it donates a proton at a "higher" location in the ETC
Term
intermembrane Space
Definition
space between the inner and outer membranes of a mitochondria
Term
Deamination
Definition
a process that occurs during cellular respiration in which an amino group is removed
Term
FAD(H2)
Definition
donates electrons and protons in the ETC to create a proton gradient and produce 2ATPs
Term
Glycolysis
Definition
the enzymatic breakdown of glucose to pyruvic acid
*6-C monosaccharide glucose converted into 2, 3-C molecules of pyruvate
Term
Redox Reaction
Definition
a chemical rxn in which a reactant becomes oxidized and the other beomes reduced
Term
Oxidative Phosphorylation
Definition
ATP formation in the mitochondria, associated with the flow of electrons through the respiratory chain
*uses inorganic P
Term
Dehydrogenation
Definition
a process that occurs during cellular respiration when an oxidized molecule has had a hydrogen removed by a dehydrogenase enzyme
Term
Decarboxylation
Definition
a process that occurs during cellular respiration in which a carboxyl group (COOH) is removed as a CO2 molecule; occurs in the mitochondrial matrix
Term
Catabolic Reaction
Definition
a systhetic rxn in which complex molecules are broken down into simpler ones and energy is released
Term
Mitochondria
Definition
an organelle in eukaryotic cells that contains enzymes of the citric acid cycle, the respiratory chain, and oxidative phosphorylation
Term
Inner Membrane of Mitochondria
Definition
seperates the biochemical processes of the mitochondria from the surrounding cytosol; has many ffolded structures called cristae and fluid inside is called the matrix
*holds H+ gradient, set up using energy released by the oxidation of NADH
Term

Krebs Cycle

(Citric Acid Cycle)

Definition
in cellular respiration, a set of chemical rxns whereby 2, 2-C molecules of acetyl CoA are oxidized to 4 molecules of CO2 and hydrogen atoms which are stored as NADH and FADH2
Term
Fermentation
Definition
the anerobic degradation of a substance such as glucose to smaller molecules such as lactic acid or alcohol with the extraction of energy
Term
Substrate-Level Phosphorylation
Definition
ATP is formed from a direct transfer of a phosphate group from a high-energy substrate to an ADP molecule; occurs during Krebs Cycle and Glycolysis
*uses organic P
Term
Beta-Oxidation
Definition
the process in which fatty acids are converted to 2-C acetyl CoA
Term
Outer Membrane of Mitochondria
Definition
has large pores and most substances can pass through it
Term
Anabolic Reaction
Definition
a synthetic reaction in which simple molecules are linked to form more complex ones; requires an input of energy and captures it in the chemical bonds that are formed
Term
Cellular Respiration
Definition
catabolism of organic molecules within cells; one key way in which cells obtain energy
Term
Pyruvate Oxidation
Definition
2, 3-C molecules of pyruvate are oxidized to 2, 2-C molecules of acetyl CoA and 2 molecules of CO2
Term
Redox Reaction
Definition
chemical rxn in which one reactant becomes oxidized and the other becomes reduced
Term
Location of Glycolysis
(in cellular respiration)
Definition
cytoplasm
Term
Location of Oxidation of a Pyruvate
(in cellular respiration)
Definition
mitochondrial matrix
Term
Location of the Krebs Cycle
(in cellular respiration)
Definition
mitochondrial matrix
Term
Location of the ETC
(in cellular respiration)
Definition
inner mitochondrial membrane
Term
Location of a High Concentration of Protons
(in cellular respiration))
Definition
intermembrane space
Term
Location of ATP Synthesis via Chemiosmosis
(in cellular respiration)
Definition
mitochondrial matrix
Term
Location of the reduction of oxygen to water
(in cellular respiration)
Definition
mitochondrial matrix
Term
Location of all decarboxylation reactions
(in cellular respiration)
Definition
mitochondrial matrix
Term
Oxidized Electron Carriers
(in cellular respiration)
Definition
NAD+ and FAD+
Term
Reduced Electron Carriers
(in cellular respiration)
Definition
NADH and FADH
Term
End Product of Glycolysis
Definition
pyruvate
Term
What does the Krebs Cycle produce?
Definition
FADH2
Term
Product of Photosynthesis
Definition
NADPH and ATP
Term
Product of the Calvin Cycle
Definition
G3P
Term
Product of glycolysis
Definition
ATP and NADH
Term
Product of Fermentation
Definition
lactate and NAD+
Term
Electron source in Photosynthesis
Definition
water
Term
Electron source in the Calvin Cycle
Definition
NADPH
Term
Electron source in glycolysis
Definition
none
Term
electron source in fermentation
Definition
NADH
Term
energy source for photosynthesis
Definition
light
Term
energy source for the Calvin cycle
Definition
ATP
Term
energy source for glycolysis
Definition
ATP
Term
energy source for fermentation
Definition
none
Term
carbon source for the Calvin Cycle
Definition
CO2
Term
starting material for Calvin Cycle
Definition
RuBP
Term
product of carbon fixation
Definition
PGA
Term
ending material of the Calvin cycle
Definition
RuBP
Term
the only energy yielding product of the oxidation of a pyruvate...
Definition
NADH
Term
sequence for the metabolism of glucose..
Definition
glycolysis
oxidation of a pyruvate
Krebs Cycle
ETC
chemiosmosis
Term
Which single step of the glucose metabolism pathway harvests the most energy?
Definition
Krebs Cycle
Term
During which process is the oxidation of sugars and their metabolites completed?
Definition
Krebs Cycle
Term
What is Beta Oxidation
Definition
the process of breaking fatty acids in to 2C acetyl-CoA molecules
Term
Electron carriers are oxidized during which metabolic processes?
Definition
ETC and fermentation
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