This module focuses on cell structure and how the organelles function together to form the smallest unit of life. The cell theory is also discussed along with the basics features of the cell. Site also includes an interactive practice...

In this interactive tutorial you will discover that the cytoskeleton is both a muscle and a skeleton, and is responsible for cell movement, cytokinesis, and the organization of the organelles within the cell.

This investigation allows students to observe cells from multiple sources. Plant, animal and bacterial cells will be observed as well as cells from multicellular organisms and single-celled organisms. After providing written descriptions...

Describes the three types of plant cells and their differences, and the structures within a plant cell and their functions.

Explains how an animal cell differs from a plant cell and describes the many parts of an animal cell and their functions.