What is the role of oxygen in the final stage of aerobic respiration?
What is the role of oxygen in the final stage of aerobic respiration?
A pyruvate molecule enters the mitochondria and is broken down in the presence of oxygen to produce carbon dioxide and water. Oxygen does not react directly with molecules of pyruvate. It is involved in the final step of the breakdown. If oxygen is not available then only two ATP are produced.
What is the final electron in aerobic respiration?
In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.
What is the role of oxygen in the electron chain?
Oxygen sits at the end of the electron transport chain, where it accepts electrons and picks up protons to form water.
What is the role of oxygen in aerobic respiration quizlet?
The purpose of oxygen in aerobic respiration is to donate the electrons that transform NAD+ + H+ to NADH.
What is the role of oxygen O2 in aerobic respiration quizlet?
What is the role of oxygen gas (O2) in aerobic cellular respiration? Oxygen must be available in the cytoplasm for glycolysis to occur. Oxygen atoms provide the energy needed to generate ATP. O2 binds to carbon released from the citric acid cycle to form CO2.
Where is oxygen in aerobic respiration?
electron transport chain
Oxygen is the final electron acceptor at the end of the electron transport chain of aerobic respiration. In the absence of oxygen, only a few ATP are produced from glucose. In the presence of oxygen, many more ATP are made.
Is oxygen needed for aerobic respiration?
Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.
Why is oxygen necessary in aerobic cellular respiration?
Oxygen is the final electron acceptor in aerobic respiration. Without the presence of oxygen, electrons would remain trapped and bound in the final step of the electron transport chain, preventing further reaction. NADH and FADH2 are necessary to donate electrons to the electron transport chain.
What is the role of oxygen in respiration quizlet?
What is the role of oxygen in cellular respiration? Oxygen accepts high-energy electrons after they are stripped from glucose. Cellular respiration accomplishes two major processes: (1) it breaks glucose down into smaller molecules, and (2) it harvests the chemical energy released and stores it in ATP molecules.
What is the role of oxygen in the electron transport chain quizlet?
Oxygen serves as the final electron acceptor of the Electron Transport Chain. Thus, oxygen is essential for getting rid of low-energy electrons and hydrogen ions, the wastes of Cellular Respiration. Without oxygen the Electron Transport Chain cannot function.
What is the role of oxygen in the body quizlet?
What role does oxygen play in the human body? Oxygen allows humans to burn food, creating energy. Every cell in the human body needs oxygen to survive. Cells turn glucose and oxygen into energy within their mitochondria, by a process called cellular respiration.
What is the role of oxygen in cellular respiration quizlet?
