Discusses the discovery of the cell nucleus, its location, size, structure, composition, and functions.

Game on the structures and functions of animal cells.

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

Presents labeled illustrations of a plant cell and an animal cell which demonstrate the parts that are common and different. This is followed by a discussion of their similarities and then of their differences.

Describes the functions of a cell and the many parts involved in those functions.

Discusses the discovery of centrosomes, their important role in mitosis in animal cells, and their other functions.

Describes the characteristics of vesicles and the functions they perform in a cell based on which type they are.

Reiew important information and key points about cell structures.

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.

The parts and functions of the mitochondria are described as well as the many illnesses that can result from mitochondrial dysfunction.

This tutorial compares prokaryotic and eukaryotic cellular organization and contrasts cells with viruses. Includes a practice quiz to test your knowledge.

The parts of a cell nucleus are described along with a list of the functions of a cell nucleus.

Describes the composition and functions of cell walls in plants, algae, fungi, and bacteria.

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.

The characteristics and functions of the Golgi apparatus are described.

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.

The structure and functions of the Golgi apparatus are described. Includes a list of interesting facts.

Describes the structure and functions of the mitochondria.

Describes the structure and functions of the mitochondria.

Discusses the structure of the matrix inside a mitochondrion and how hundreds of concentrated enzymes are held there. The matrix takes part in mitochondrial functions such as the Krebs cycle, the electron transport chain, ATP synthesis,...