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

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

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Cell Structure and Compartments
Microtubules, motor proteins, and actin filaments are all part of

the process that moves small molecules across cell membranes
the cytoskeleton of eukaryotic cells
the rough ER (endoplasmic reticulum) in prokaryotic cells
the mechanism of photosynthesis that occurs in chloroplasts

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

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

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