Which one of the following best explains why humans must constantly breathe in oxygen in order to stay alive?
A) Oxygen is an important source of energy for cells and is used to make glucose.
B) Oxygen is the final electron acceptor in the process of cellular respiration, which results in the production of the ATPs required to fuel cell functions.
C) Oxygen must be available to cells in order for them to make the sugars necessary to supply energy for cell functions.
D) Oxygen is used to drive the anaerobic breakdown of sugars for the production of ATP.
E) Oxygen is converted to carbon dioxide, which is then used to drive the production of ADP.

Question

Quizplus · Accepted Answer

Oxygen is the final electron acceptor in the electron transport chain during cellular respiration, which results in the production of ATPs required to fuel cell functions. Without oxygen, the electron transport chain would be unable to function, and cells would not be able to produce the necessary energy to survive.

Which One of the Following Best Explains Why Humans Must