Cells | What's in there?
What's in there?
Cells are not lifeless blobs. Chemical changes within each cell accomplish many functions, including digestion and breathing. There are two basic types of cells, plant cells and animal cells. Almost all cells share similar features, such as a cell membraneA thin-layered tissue that surrounds a cell., which surrounds the cell. The cell membrane is a thin wall that lets gases, such as oxygen, and fluids, such as nutrients, pass through. CytoplasmThe semifluid substance inside a cell that surrounds the nucleus and the other membraneenclosed organelles. (pronounced CY-tow-pla-sim) is the gray, jellylike substance inside the cell membrane. It consists mostly of water but also has many other substances important for cells to function.
Think of a cell as a factory with each division performing...
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