Khan Academy: Structure of a Cell: Introduction to Cells: Scales of Cells

Every region has a renewable resource that can be used to make hydrogen. But, what is hydrogen and why can it be used as an energy source? Find out with a presentation that answers these questions and then discusses where hydrogen is...

The U.S. produced enough wind energy in 2015 to power all of the homes in Alaska, California, Delaware, the District of Columbia, Hawaii, Idaho, Maine, Montana, Nebraska, New Hampshire, North Dakota, Rhode Island, South Dakota, and...

People have been using solar energy for many generations to dry crops, heat homes, and for light. This presentation explains how now it is possible to capture the solar energy and store it for future use, details how and where...

Article explores the life cycle of a cell and delves into the phases of the cell cycle.

Overview of B cells (B lymphocytes) and how they are activated and produce antibodies. [14:08]

Article takes a look at how cancer develops and what's wrong with cancer cells. Also, delves into how abnormal forms of cell cycle regulators can contribute to cancer.

Explore the structure of cell membranes including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins. The video shows and discusses the fluid mosaic model as well as how cell walls differ from cell membranes. 

Learn about what happens to the cell during interphase in this video. Video will review how the cell prepares for cell division including chromosome changes, centromeres, and many more. [8:27]

A detailed description of how oxygen is delivered to the body's tissues. [16:30]

A multi-faceted lesson immerses AP biologists into the world of the stem cell. Using PowerPoint presentations, you introduce your class to diabetes and the possibility of finding cures through stem cell research. Online animations and...