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.

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

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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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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
help the cell against physical damage
assist with cell movement
make it possible to package large amounts of DNA within the cell

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

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

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