This seventh edition connects experimental material to key concepts of cell biology. The text offers streamlined information that reinforces a connection of key concepts to experimentation. Though the use paired art, and new science illustrations, readers benefit from a visual representation of experimental connections. Animations and video clips are tied to key illustrations with practice questions to provide a variety of ways to experience a key concept. This new edition offers an appropriate balance of concepts and experimentation. Experimental detail is offered when it helps to reinforce the concept being explained.