Cell Structure and Compartments
Which of the following is the best criterion for deciding whether a cell is prokaryotic or eukaryotic?

The cell has a nucleus or not
The cell came from a single-celled or multicelled organism
The cell has cytosol or not
DNA is present in the cell or not

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

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

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

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Cell Structure and Compartments
Lysosomes are specialized vesicles in __________ that contain digestive enzymes for the breakdown of food. A related organalle known as a vacuole, which is found in __________ , also contains enzymes but in addition may act as a storage organelle for nutrients or water.

plants; animals and fungi
plants and fungi; animals
animals and plants; fungi
animals; plants and fungi

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