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

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

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Cell Structure and Compartments
Which of the following statements about prokaryotes is false?

Prokaryotic cells concentrate important materials for the cells survival
The substance known as cytosol is found within the bacterial nucleus
Ancient prokaryotes may have given rise to some eukaryotic organelles
Prokaryotic cells are much smaller than most eukaryotic cells

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

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

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

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

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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 mechanism of photosynthesis that occurs in chloroplasts
the process that moves small molecules across cell membranes

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