Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Describe the structure of eukaryotic cells
Compare animal cells with plant cells
State the role of the plasma membrane
Summarize the functions of the major cell organelles

Find animated diagrams that describe both eukaryotic cells and prokaryotic cells. There are models for animal, plant, and bacteria cells.

This resource provides a detailed diagram of animal, bacterial and plant cells and viral structure. Also included are detailed drawings, with definitions, of each of the cellular organelles.

A descriptive screencast describing cell structure and organization, highlighting the difference between plant and animal cells. [3:33]

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