Cell Structure and Compartments
A certain cell organelle which is made of a double phospholipid bilayer that has many large pores in it, is most likely

the plasma membrane
the cytoskeleton
the mitochondrion
the nuclear envelope

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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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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
The substance known as cytosol is found within the bacterial nucleus
Prokaryotic cells concentrate important materials for the cells survival

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

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

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Cell Structure and Compartments
What do dystrophin, utrophin, actin, and tubulin have to do with eukaryotic cell structure and function?

They all participate in the degradation of large amounts of ATP
They all participate in the production of large amounts of ATP
They are all embedded proteins in plasma membranes
They are components in the reactions of photosynthesis

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