"Use this animation to compare the relative sizes of cells and organisms sitting on a pinhead. See the size of these nearly invisible without magnification" View dust mites dwarf pollen grains and human cells. In turn, bacteria and...

A collection of PDF study aids to help learners comprehend cell biology.

Resource provides a holistic and complete meiosis lesson with illustrations, animations, glossary, and links. Extremely detailed and helpful site.

Diagrams and animations help you understand the basics of cell membrane structure and function.

An online video game where players take control of a tiny virtual submarine that explores plant and animal cells from the inside! Players learn about organelles, respiration, and photosynthesis.

Short animations, detailed information, and illustrated diagrams help explain the cell cycle and cellular division, focusing on binary fission and mitosis.

An in-depth reference explaining each stage of meiosis as a part of sexual reproduction. Animated images and diagrams help learners with understanding.

Students color-code a schematic of a cell and its cell membrane structures. Then they complete the "Build-a-Membrane" activity found at http://learn.genetics.utah.edu. This reinforces their understanding of the structure and function of...

Learners learn about the different structures that comprise cell membranes, fulfilling part of the Research and Revise stages of the legacy cycle. Students view online animations of cell membrane dynamics (links provided). Then they...

Eukaryotic cells have separate DNA from mitochondria and chloroplasts which indicates that they were once primitive cells on their own. This multimedia article includes animations, pictures, video, biographical information, and quiz...

Many scientists have worked on discovering what genes are "turned on" within cells at different stages of development. DNA arrays and gene chips are techniques that have been developed. This article will help you understand these...

This activity offers an alternative to cell models to help the students to understand cells and their functions. Students are required to produce a travel brochure that describes a plant or animal cell as if it were a large exhibit or...

Through informational text, interactive simulations, and step-through animations, students discover two major processes of cell reproduction; mitosis and meiosis.

Slideshow of mitosis and meiosis side-by-side. It is a summation of the two processes and the differences between them are clear.

Find animated diagrams that describe both eukaryotic cells and prokaryotic cells. There are models for animal, plant, and bacteria cells.

Take a peek inside a plant or animal cell, and examine the structure and function of each organelle.

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

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

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

Investigate plant and animal cells by clicking on the different organelles to learn how their structure affects the function of the cell.

A slideshow and a short multiple-choice quiz on the topic of animal cells.

Click on the terms and you will be presented with a picture of the cell part along with a clear explanation of its role within the cell. Other links are provided for further clarification of terminology.

Explore the difference between animal and plant cells.

Moving materials across the cell membrane sometimes requires energy, called active transport. This tutorial covers both primary and secondary active transport with good clear animations.