This lesson explains the difference between Eukaryotic and Prokaryotic cells. It is 1 of 4 in the series titled "Eukaryotic vs. Prokaryotic Cells."

What is the cell structure of a prokaryote? Check out these cells with unorganized nuclei featured.

Interactive illustration displays the organelles of an animal cell and their functions.

Take this 13 question quiz to test your knowledge of the parts of a plant cell. Know vocabulary such as nucleus, chloroplast, and ribosome.

Travel deep into the human body to see exactly where your DNA resides. From the NOVA: Cracking the Code of Life Web site.

Discover the organelles of a cell, and how their structure contributes to the cell's function.

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...

Learn the basic structure and function of the nucleus, or the control center of a eukaryotic cell.

Explains cell structure and function and describes the parts of a cell.

Use this site for lots of different ideas on how to make a model of a neuron.

A crossword to help review the terms and definitions associated with organelles.

Brief description of all the organelles.

Describes the structure and functions of the membrane surrounding a cell nucleus.

This collection of publications about genetics includes a unique approach to illustrate a genetics timeline. Important genetic events are correlated with other historical events. The book format allows you to scroll through history.

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 2 of 5 in the series titled "DNA."

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 1 of 5 in the series titled "DNA."

Explains how DNA contains genetic material and how it is housed in chromosomes. This lesson is 4 of 5 in the series titled "DNA."

See how our DNA is tightly packed up so that six feet of this long molecule fits into the microscopic nucleus of every cell. [1:30]

Learn about the structure of a typical plant cell with this informative diagram. The diagram lists important parts such as the nucleus, cytoplasm, leukoplast, cell wall, chloroplast and ribosomes.

[Free Registration/Login may be required to access all resource tools.] For many years, archaea were classified as bacteria. Like the bacteria, archaea lacked a nucleus and membrane-bound organelles and, therefore, were prokaryotic...

[Free Registration/Login may be required to access all resource tools.] During mitosis, the DNA in a nucleus must replicate. The copied DNA is divided into two genetically identical sets, so that after cytokinesis or cell division, each...

Wikipedia offers brief but accurate information on cytoplasm, the matter contained within the plasma membrane of a cell.

Simple animation explains the function of chromosomes, genes, and DNA by letting you zoom into a cell nucleus for a closer look.

Make sure you know your facts before playing this game! Concepts of cellular respiration are the focal point of the questions. Get them correct and hit the target, or get them wrong and your arrow will flop.