Multiple Choice
In the electron transport chain, the final electron acceptor is:
a) H2O.
b) CO2.
c) H2O.
d) O2.
e) NAD+.
8. Respiration
Electron Transport Chain
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In eukaryotic cells, the components of the electron transport chain are located in or on __________.
A
the cytosol
B
the matrix of the mitochondrion
C
the intermembrane space of the mitochondrion
D
none of the listed locations
E
the inner membrane of the mitochondrion
Verified step by step guidance1
Understand the structure of the mitochondrion: The mitochondrion has an outer membrane, an inner membrane, and spaces such as the intermembrane space and the matrix.
Learn about the electron transport chain (ETC): The ETC is a series of protein complexes and other molecules that transfer electrons through a membrane to create a proton gradient that drives ATP synthesis.
Identify the location of the ETC: In eukaryotic cells, the ETC is embedded in the inner membrane of the mitochondrion, which is crucial for its function in oxidative phosphorylation.
Consider why the inner membrane is suitable: The inner membrane's structure allows for the establishment of a proton gradient between the matrix and the intermembrane space, essential for ATP production.
Review the options given: Compare the listed locations with your understanding of the mitochondrion's structure and the ETC's function to determine the correct answer.
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