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

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

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Cell Structure and Compartments
Which of the following statements about prokaryotes is false?

Prokaryotic cells are much smaller than most eukaryotic cells
Ancient prokaryotes may have given rise to some eukaryotic organelles
Prokaryotic cells concentrate important materials for the cells survival
The substance known as cytosol is found within the bacterial nucleus

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

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

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

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

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