Video 2.9 and 2.10

What is an advantage of cellular compartmentalization?

• Allows cells to have regions with internal chemistry distinct from the cytoplasm.

• Decreases the overall surface area of the cell.

• Prevents all enzymes from functioning within the cell.

• Simplifies the internal structure of the cell.

How does compartmentalization differ between prokaryotic and eukaryotic cells?

• Prokaryotic cells are highly compartmentalized, while eukaryotic cells have few compartments.

• Eukaryotic cells have many internal membranes, while prokaryotic cells have few compartments.

• Both cell types have similar levels of compartmentalization.

• Compartmentalization is only found in prokaryotic cells.

What is endosymbiosis?

• Two species living closely associated with each other.

• One species living inside another species.

• A negative interaction between two species.

• The process of a cell engulfing external material.

What evidence supports the theory that chloroplasts and mitochondria were once free-living bacterial cells?

• They have linear DNA and replicate through mitosis.

• They lack ribosomes and rely on the host cell for protein production.

• They possess their own circular DNA and replicate through binary fission.

• They have a single membrane and are unable to produce their own proteins.