[Free Registration/Login may be required to access all resource tools.] Learn about the evolution of eukaryotes which is explained by the endosymbiotic theory.

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

The parts of an animal cell are presented with descriptions of each of its organelles.

Describes the structure and functions of a cell nucleus.

Discussion in detail of the structure and function of the nucleus and ribosomes of a cell and how they work together in the production of proteins.

This study resource from Khan Academy provides practice questions for the MCAT. "Cell theory" questions are provided on this resource.

This site features a clear picture of the plant cell with a concise explanation of its key parts and their functions.

This lesson explains the difference between Eukaryotic and Prokaryotic cells. It is 3 of 4 in the series titled "Eukaryotic vs. Prokaryotic Cells."

Cells are almost like tiny factories run by robots, with the nucleus, DNA, proteins, lipids, and vitamins and minerals all playing critical roles. George Zaidan and Charles Morton lay out the blueprint of a cell and explain how...

An online worksheet exploring the cell structure and cell specialization. Worksheet includes diagramming and fill in the blank opportunities related to cell structure.

This site lets students practice vocabulary words related to cell organelles. The same vocabulary words are presented in one of four different games for students.

Provides a labeled diagram of a plant cell and descriptions of the characteristics and functions of many of its organelles.

Describes the different parts of a plant cell.

This resource is a cellular biology course site with clickable list that provides electron micrographs of various cell organelles and the like.

Through full-color images and concise information, learn about the origin of cells. Discover some of the notable studies surrounding the history of life on Earth.

A reference site exploring cell structure. Learn about the structures and functions of the major organelles of the cell. Also included are research questions to better understand the cell.

An interactive plant cell that presents labels and definitions of the different cell parts when selected.

36-page tutorial takes a look at the organization of living cells.

Reference information about the study of cells. Includes a chart comparing plant and animal cells and one examining the structure of a cell.

This site illustrates different parts of a plant and animal cell. The student may then drag and drop labels to the correct cell part.

The characteristics, structure, and functions of the nucleolus are described.

[Free Registration/Login may be required to access all resource tools.] There are two basic types of cells, prokaryotic cells and eukaryotic cells. The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells...

A slide-show presentation illustrating the differences between eukaryotic and prokaryotic cells.

Explains how plant and animal cells are different and describes the organelles in a plant cell.