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

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

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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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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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