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

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

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

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

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Cell Structure and Compartments
The highly folded membranes found in such eukaryotic organelles as mitochondria and chloroplasts

assist with cell movement
help the cell against physical damage
make it possible to package large amounts of DNA within the cell
increase the surface area where key chemical processes can occur

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