Khan Academy: Structure of a Cell: Cell Size

After removing the shell from a raw egg, cell biologists soak the egg in either a hypotonic, hypertonic, or isotonic corn syrup solution. They calculate the percent change in mass and compare it to the strength of the solution in a...

Life science learners investigate live cells. They examine wet mount slides of cyanobacteria and Elodea plants. They peer into the dynamic microscopic world of protists. Afterward, they construct a model of a cell, including rudimentary...

Students define the function of the different parts of a cell. In this biology lesson plan, students  discuss cell structures and how its organelles perform basic functions. They differentiate between human and animal cells.

The inner life of a cell is laid out like a science fiction film. With dramatic music playing in the background, show your learners how the organelles interact and perform. This highly scientific clip is very detailed and is geared...

Cell membranes contain many contradictions; for example, they are both oily and strong. The video explains the parts of a cell membrane, the function of each part, and discusses the contradictions. It highlights what happens when...

The human body contains more than 200 types of cells, and plants contain many other unique types of cells. While a huge variety of cells exist, they appear to have very similar structures. A detailed presentation describes the structure...

The differences between prokaryotic and eukaryotic cells are explained and the parts of each are highlighted. Discover the major organelles found in an animal cell and each of their functions. Paul Andersen does an excellent job once...

Viruses were nano before it was cool to be nano. The presentation covers the structure of a virus cell and the life cycle of a virus. It also includes two videos illustrating the virus cell in greater detail.

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. 

Humans have taken communication to every corner of the Earth, yet our bodies, at the cellular level, have communicated without technology for millions of years. Learners view the variety of ways cells can communicate, whether right...