Textbook Question
Which of the following is added during water or sewage treatment to promote flocculation?
a. sludge
b. PHA
c. BOD
d. alum
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12. Microbial Metabolism
Introduction to Aerobic Cellular Respiration
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Which of the following is the final electron acceptor in aerobic cellular respiration?
A
Carbon dioxide (CO_2)
B
Nitrate (NO_3^-)
C
Sulfur (S)
D
Oxygen (O_2)
Verified step by step guidance1
Understand the process of aerobic cellular respiration, which involves the breakdown of glucose to produce energy in the form of ATP.
Recall that during aerobic respiration, electrons are transferred through a series of protein complexes in the electron transport chain located in the mitochondria.
Identify that the final electron acceptor is the molecule that receives electrons at the end of the electron transport chain, allowing the chain to continue functioning.
Recognize that in aerobic respiration, oxygen (O_2) acts as the final electron acceptor, combining with electrons and protons to form water (H_2O).
Note that other molecules like carbon dioxide (CO_2), nitrate (NO_3^-), and sulfur (S) can serve as electron acceptors in different types of respiration (e.g., anaerobic), but not in aerobic respiration.
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