Cell membrane: a thin layer that surrounds a cell; this layer separates and protects the inside of the cell from harmful agents around the cell and controls what moves in and out of the cell. Lysosome : breaks down waste materials in an animal cell.
Free cell defense game for Android. 2 cell defense game products found.This game explains to you in a lot of detail how cells work and it names every part of the cell by its scientifically correct name. That means you can learn a lot about yourself and biological processes in general in this game. Grow and become stronger. For example you have to collect molecules that the cell needs to survive.
Apr 11, 2020 · Challenge your knowledge of these topics by taking our fun biology quiz. The questions range from easy to hard and will test you on a number of different biology related subjects as well as some general trivia. When you’ve finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers.