Cell Structure and Compartments
Which of the following macromolecules are found in the plasma membrane?

Proteins only
Proteins and carbohydrates only
Lipids, proteins, and carbohydrates
Lipids and proteins only

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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 production of large amounts of ATP
They all participate in the degradation 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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