Cell Structure and Compartments
Which of the following two organelles look most alike structurally?

Golgi apparatus and smooth endoplasmic reticulum ER
Vacuole and cytoskeleton
Lysosome and chloroplast
Nucleus and vesicle

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Cell Structure and Compartments
Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization

allows for specialization through the subdivision of particular tasks
allows for specialization through merging of different tasks
makes each compartment nutritionally independent of all others
reduces overall cell size

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Cell Structure and Compartments
According to the fluid mosaic model of cell membranes,

the most common type of molecules in the membrane are proteins
the membrane is a highly mobile mixture of phospholipids and proteins
basic membrane structure results from how the proteins interact with water
the unique properties of cell types are determined by their phospholipids

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