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

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

Identify and describe the properties of life
Describe the levels of organization among living things
Recognize and interpret a phylogenetic tree
List examples of different subdisciplines in biology

Introduction to plants and some of their common traits and needs.

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Introduction to plants and some of their common traits and needs.

A free CK-12 account is required to view all materials.

Use this resource to discover the basic structure of a eukaryotic cell and some of the organelles it contains.

Learn the basics of prokaryotic and eukaryotic cells in this video. [6:50]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Paul Andersen describes the structure and function of the major organelles in a eukaryotic cell. The endoplasmic reticulum, ribosomes, and golgi complex produce and store proteins in the cell. Lysosomes dissolve broken and invasive material. Vacuole store material in plant cells. [9:38]

In this lesson, the students look at the components of cells and their functions. The lesson focuses on the difference between prokaryotic and eukaryotic cells. Each part of the cell performs a specific function that is vital for the cell's survival. Bacteria are single-celled organisms that are very important to engineers. Engineers can use bacteria to break down toxic materials in a process called bioremediation, and they can also kill or disable harmful bacteria through disinfection.

In this unit, students look at the components of cells and their functions and discover the controversy behind stem cell research. The first lesson focuses on the difference between prokaryotic and eukaryotic cells. In the second lesson, students learn about the basics of cellular respiration. They also learn about the application of cellular respiration to engineering and bioremediation. The third lesson continues students' education on cells in the human body and how (and why) engineers are involved in the research of stem cell behavior.

This pathway explores the different types of cells, including eukaryotic, prokaryotic and plant cells, and their structures.

This pathway provides an introduction to cells as the basic unit of life and their structure and function. Prokaryotic, eukaryotic and plant cells are compared and the structure and function of different organelles is discussed. For a deeper look at this topic, we recommend the pathway Cell Structure from the OpenStax textbook Biology for AP® Courses.

Eukaryotic cells have separate DNA from mitochondria and chloroplasts which indicates that they were once primitive cells on their own. This multimedia article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking on buttons along the bottom of the page.

Video tutorial gives an overview of the membrane-bound structures that form the endomembrane system in eukaryotic cells. [6:19]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

An introduction to the structure of two different types of cells: eukaryotic and prokaryotic cells. [2:14]

Site highlights the various features of an animal cell. Presents users with a colorful diagram depicting the anatomy of the animal cell. Provides links to obtain more detailed information about the various components found in animal cells.