Cells

In science, we are learning about cells. Cells are considered the basic units of life. To start, each cell has a cell membrane. The cell membrane protects what is inside. In plants and algae, the cells have a cell wall. The cell wall gives the cell membrane support and strength. After that, there's everything inside. The "computer" of the cell is all in the nucleus. The DNA is in the nucleus. The DNA contains the information needed to make the cells proteins. There might also be a nucleolus inside the nucleus. Next, there's the ribosomes. The ribosomes are very small building blocks of cells. These ribosomes carry messages to the endoplasmic reticulum. The endoplasmic reticulum (ER) is known as the delivery system of the cell. The ER transports protiens (that come from ribosomes) somewhere else later, after storage. The mitochondria of a cell is known as the energy system of a cell. Did you know the reason you breathe is so the mitochondria has the oxygen it needs? Plants and algae have chloroplast which is responsibe for converting energy. Lastly, lysosomes contain enzymes.

Look at the diagram above to learn more about a cell.

Click on the CELL to learn more