Study the mitochondria in the science of biology on this site. Find out how these tiny organelles inside cells produce energy for the rest of the cell through respiration.

Explore the cell nucleus in the science of biology on this site. Learn how this organelle is the control center of the cell, storing the DNA and hereditary information inside chromosomes.

Kids learn about cell ribosome in the science of biology. This organelle acts like a tiny factory making all sorts of different proteins for the cell using RNA and amino acids.

The endoplasmic reticulum is found in eukaryotic cells. The characteristics and functions of the smooth endoplasmic reticulum are described and it is then compared with the rough endoplasmic reticulum.

Resource takes a look at the structure and function of the organelles mitochondria and chloroplasts. It also examines endosymbiosis, where the organelles probably came from.

Article looks at the structure and function of the different parts of the endomembrane system, how proteins, lipids, and vesicles are transported between these parts, and how this activity keeps the cell running smoothly.

Wikipedia provides excellent information on chloroplasts, organelles found in plant cells and eukaryotic algae which conduct photosynthesis.

A short, informational text piece which explains the structure and function of microfilaments inside a cell.

The structure and functions of chloroplasts are described in detail here.

Practice for the MCAT by answering questions based on the given graphs about pancreatitis.

[Free Registration/Login Required] This flipchart is a Jeopardy game where students will review and discuss the development of the Germ Theory, as well as cell organelles and bacterial and viral diseases.

A tutorial on symbiotic relationships that explores the differences between prokaryotic and eukaryotic cells as well as the origins of eukaryotic organelles possibly being from endosymbiotic relationship. This tutorial also offers...

The structure and function of a vacuole inside a plant cell are described.

Explains what lysosomes are, the different functions they perform in a cell, and what can happen when they become dysfunctional.

Explains what the cell nucleolus is, its functions, and its structure.

Explains what vacuoles are and what their functions are in animal cells and plant cells, and offers analogies to help students understand their different roles.

Presents information about lysosomes and offers analogies to help students recall their functions in a cell.

Presents information about vacuoles and offers analogies to help students recall their functions in a cell.

Tutorial with animated illustrations showing how vesicles work to transport materials inside a cell and release them through the cell's membrane to the outside.

A very brief explanation of the structure and function of this organelle.

This site provides detailed information on chloroplasts. Explains the many duties that chloroplasts perform and why they are so important. Good diagrams.

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.

Bacteria are single celled microbes. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles. Instead their control centre containing the genetic information is contained in a single...

A short piece of informational text which explains the structure and function of ribosomes in a cell.