You may have heard that bacteria can be good or bad. But what if some bacteria can be both? Let’s find out more about bacteria that are sometimes mischievous.
Ask A Biologist
Welcome to Ask A Biologist. This site has a large collection of biology learning materials that includes stories, games, activities, videos, and a podcast.
Germs are tiny organisms that can make you feel sick and cause disease. During this activity you will illustrate the steps germs take during transmission. You will learn about the different types of bacteria, how they are spread, and discuss ways to keep from getting sick.
Play the Venom! Game
The shape of a molecule is very important. It’s what makes it possible for proteins to interact with other parts of the cell. In this invader game, you will defend the cells of the body against molecules of scorpion venom using antivenom.
To learn more, visit our story, Venom!
Play the Cell Size SIM
Certain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are different than they should be? The size of the nucleus versus the size of the cytoplasm in a cell is an important measure – it can tell us if something might be wrong with that cell. Explore more about this "NC ratio" in Cell Size SIM.
To learn more about cells, visit The Building Blocks of Life.