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Bio 1441 Chapter 9
Cellular Respiration and Fermentation
26
Biology
Undergraduate 1
03/27/2012

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Term
Philippians 4:13
Definition
I can do all things through Christ who gives me strength.
Term
Colossians 3:17
Definition
And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father through him.
Term
Fermentation
Definition
Partial degradation of sugars or other organic fuels that occurs without the use of oxygen.
Term
Aerobic Respiration
Definition
Oxygen is consumed as a reactant along with the organic fuel.
Term
Cellular Respiration
Definition
Technically includes aerobic and anaerobic, but general refers to aerobic.
Term
Redox Reactions
Definition
Reactions in which there is a transfer of one of more electrons from one reactant to another.
Term
Oxidation
Definition
The loss of electrons from a substance.
Term
Reduction
Definition
The addition of electrons to a substance.
Term
Reducing Agent
Definition
The electron donor.
Term
Oxidizing Agent
Definition
The electron acceptor.
Term
NAD+
Definition
An electron carrier (and coenzyme) to which hydrogen atoms are usually passed.
Term
Electron Transport Chain
Definition
Consists of a number of molecules, mostly proteins, built into the inner membrane of the mitochondria of eukaryotic cells and the p;asma membrane of aerobically respiring cells.
Term
Glycolysis
Definition
Breaks glucose into two molecules of pyruvate
Term
Citric Acid Cycle
Definition
Process in which the breakdown of glucose to carbon dioxide is completed.
Term
Oxidative Phosphorylation
Definition
Energy release at each step of the chain (electron transport chain) is stored in a form the mitochondrion (or prokaryotic cell) can use to make ATP from ADP.
Term
Substrate-Level Phosphorylation
Definition
Occurs when an enzyme transfers a phosphate group from a substrate molecule to ADP.
Term
Acetyl CoA
Definition
The compound pyruvate is first converted into upon entering the mitochondrion via active transport.
Term
Cytochromes
Definition
Iron-containing protein that is a component of electron transfer chains.
Term
ATP Synthase
Definition
Enzyme that makes ATP from ADP and inorganic phosphate.
Term
Chemiosmosis
Definition
Process in which energy stored in the form of a hydrogen ion gradient across a membrane is used to drive cellular work such as the synthesis of ATP.
Term
Proton-Motive Force
Definition
The H+ gradient that results as H+ is accepted from the mitochondial matrix and deposited in the intermembrane space.
Term
Alcohol Fermentation
Definition
Pyruvate is converted to ethanol in two steps.
Term
Lactic Acid Fermentation
Definition
Pyruvate is reduced directly by NADH to form lactate as an end product with no release of CO2.
Term
Obligate Anaerobes
Definition
Carry out only fermentation of anaerobic respiration.
Term
Facultative Anaerobes
Definition
Organisms (such as yeast and many bacteria) that can make enough ATP to survive using either fermentation or respiration.
Term
Beta Oxidation
Definition
Metabolic sequence that breaks the fatty acids down to two-carbon fragments which then enter the citric cycle as acetyl CoA.
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