The Citric Acid Cycle Quiz

Cellular Respiration

• Cellular respiration process that provides more energy (ATP) from glucose than glycolysis is the oxidative phosphorylation.

Thermodynamics

• The change in Gibbs free energy ($\Delta G'$) for the full oxidation of glucose is -2870 kJ/mol.

Stages of Cellular Respiration

• The three major stages of cellular respiration are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Citric Acid Cycle (CAC)

• The main function of the Citric Acid Cycle (CAC) is to produce energy for the cell by generating ATP, NADH, and FADH2.
• The term for the reactions that replenish the intermediates of the Citric Acid Cycle is anaplerotic reactions.
• For each acetyl CoA that enters the TCA cycle, one molecule of CO2, three molecules of NADH, and one molecule of FADH2 are produced.

Glycolysis

• The net change in Gibbs free energy ($\Delta G'$) for glycolysis is -73.6 kJ/mol.

Energy from Lipids and Amino Acids

• The process that captures energy stored in lipids and amino acids is beta-oxidation and the citric acid cycle.

Pyruvate Dehydrogenase (PDH) Enzyme

• The main function of the PDH enzyme is to convert pyruvate into acetyl CoA, which then enters the citric acid cycle.