10 Questions
Why is anaerobic respiration mostly relegated to oxygen-free environments?
Oxygen is poisonous to many anaerobes.
What governs the selection of TEAs in anaerobic respiration?
Free energy yields
Which of the following is NOT a commonly available TEA in anaerobic environments?
Carbon dioxide
What does PED stand for in the context of respiration?
Primary Electron Donor
What mainly determines the use of a particular PED in respiration?
Free energy yields associated with its reaction with TEAs
Which of the following is an example of a less abundantly available TEA?
Sulfate
What is the primary reason for using specific electron acceptors in anaerobic respiration?
To generate ATP through phosphorylation
What role do organic compounds play in respiration?
Organic compounds serve as primary electron donors.
Which of the following is not a commonly used TEA in anaerobic respiration?
Hydrogen sulfide
What factor primarily determines the choice of electron acceptors in anaerobic respiration?
Free energy yield from reactions
Learn about the electron transport chain (ETC) in cellular respiration, where electrons are transferred through a series of membrane-associated carriers. Understand how electrons are passed to carriers with increasing redox potentials, leading to the final electron acceptor (TEA).
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