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AP Biology337 views·Updated Aug 8, 2026Introduction to Cell Compartmentalization
Practice identifying how membrane-bound organelles increase surface area and facilitate specialized chemical reactions in eukaryotic cells.
A researcher observes a cell with a high density of rough endoplasmic reticulum (ER). Based on the structural properties of this organelle, which of the following is the most likely function of this cell?
- A researcher observes a cell with a high density of rough endoplasmic reticulum (ER). Based on the structural properties of this organelle, which of the following is the most likely function of this cell? — Production and secretion of large amounts of proteins
- The inner mitochondrial membrane is highly folded into structures called cristae. Which of the following best explains the functional advantage of this structural adaptation? — It increases the surface area for the electron transport chain
- Lysosomes maintain an internal pH of approximately 5.0, while the surrounding cytosol has a pH of about 7.2. Which of the following is a direct benefit of this compartmentalization? — It prevents digestive enzymes from damaging the rest of the cell
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