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Multiple Choice
Which of the following five membranes is most likely to have a lipid composition that is distinct from those of the other four?
A
Endoplasmic reticulum
B
Plasma membrane
C
Lysosome membrane
D
Golgi apparatus
E
Mitochondrial outer membrane
Verified step by step guidance
1
Understand that different cellular membranes have distinct lipid compositions due to their unique functions and origins.
Recognize that the endoplasmic reticulum, plasma membrane, lysosome membrane, and Golgi apparatus are all part of the endomembrane system, which often shares similar lipid compositions.
Identify that the mitochondrial outer membrane is not part of the endomembrane system and has a unique origin, as mitochondria are thought to have evolved from an ancestral prokaryotic cell.
Consider the role of the mitochondrial outer membrane, which is involved in energy production and has a distinct lipid composition, including a higher concentration of cardiolipin, which is not typically found in other cellular membranes.
Conclude that the mitochondrial outer membrane is most likely to have a lipid composition distinct from the other four membranes listed, due to its unique evolutionary origin and functional requirements.