Scientific Videos

Membranes are vital  because they separate the cell from the outside world.  They also separate compartments inside the cell to protect ...

Osmosis is the process by which water enters our tissues. All of our cells are surrounded by a membrane that selectively allows in anythi...

 osmosis potato experiment Fill both of the dishes with water and add about two tablespoons of salt to one of the dishes. Using the knife...

onion epidermis is composed of plant cells. These plant cells are arranged in order, because their cell walls obligations to each other. The...

Hydrilla verticillata leaves a large amount of plant cells clearly defined. The leaf has a dark bar in the center. It's edges are uneven...