18 Questions
What is the primary role of the electron transport chain in cellular respiration?
To generate ATP through the process of oxidative phosphorylation
What is the role of the citric acid cycle in cellular respiration?
To generate NADH and FADH2 for the electron transport chain
What is the purpose of the oxidation of pyruvate to acetyl-CoA in cellular respiration?
To produce NADH and FADH2 for the electron transport chain
What is the purpose of ATP production in cellular respiration?
To provide energy for the cell's metabolic processes
How does the oxidation of glucose contribute to the overall process of cellular respiration?
By generating NADH and FADH2 for the electron transport chain
What is the role of the barrier of activation energy in the oxidation of glucose during cellular respiration?
To prevent the instantaneous combustion of glucose with oxygen
What is the fate of the carboxyl group during the oxidation of pyruvate to acetyl CoA?
It is removed as a molecule of CO2
Where does the oxidation of glucose get completed in eukaryotic cells if molecular oxygen is present?
Mitochondrion
Which complex catalyzes the reactions linking glycolysis and the citric acid cycle by converting pyruvate to acetyl CoA?
Pyruvate dehydrogenase complex
What happens to most of the chemical energy in glucose after glycolysis releases less than a quarter of it?
Utilized for ATP production
Where does the oxidation of pyruvate to acetyl CoA take place in prokaryotic cells?
Cytosol
Which molecule feeds its acetyl group into the citric acid cycle for further oxidation?
Acetyl CoA
What is the main purpose of the electron transport chain in cellular respiration?
To transfer electrons to oxygen in energy-releasing steps
During which stage of aerobic respiration does the oxidation of glucose to CO2 occur?
Citric acid cycle
What happens to electrons as they are transferred from glucose to oxygen during cellular respiration?
They lose potential energy
Which process directly results in the formation of ATP molecules in cellular respiration?
Oxidative phosphorylation
What is the role of NADH in cellular respiration?
To transport electrons to the electron transport chain
Which molecule serves as an intermediate between glycolysis and the citric acid cycle in cellular respiration?
Acetyl CoA
Test your knowledge on electron transfer during respiration, focusing on the changes in energy states and the liberation of energy for ATP synthesis. Explore how carbohydrates and fats serve as reservoirs of electrons associated with hydrogen.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
