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

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

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

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

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

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

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

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Cell Structure and Compartments
Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization

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

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