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Origins of Cell Compartmentalization Practice Test
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Q1
An archaeal species is observed under electron microscopy to have extensive internal membrane folds that increase over generations in a stable environment. The folds are continuous with the plasma membrane and share the same membrane proteins, including transporters found at the cell surface. No separate genome is detected inside the folded regions, and the folds do not divide independently of the cell. Which inference best explains how these compartments could have arisen?
An archaeal species is observed under electron microscopy to have extensive internal membrane folds that increase over generations in a stable environment. The folds are continuous with the plasma membrane and share the same membrane proteins, including transporters found at the cell surface. No separate genome is detected inside the folded regions, and the folds do not divide independently of the cell. Which inference best explains how these compartments could have arisen?