Animal Cells - Building Block of mankind!

2.nucleus, 9.mitochondria,
5 and 8. ER

Maybe you would be heard about 'the cell' at science class or TV. In fact, a cell is very enormous creatures in whole universe. I used the term 'creature' because a cell is living, and also has organs like ourselves. Today I am going to introduce about 'cell' and 'cell's organ' to you.

What is cell? As I mentioned, cell is 'Building block of mankind(in fact all organism.)' It means we are made of cells. humans contain about 100 trillion (10¹⁴) cells(1).





Then, what are in cell? There are many organs of cell. We called them 'organelle'. I will show you easy explanation about some important organelle, mitochondria, nucleus, endoplasmic reticulum(ER), and cytoskeleton!

mitochondria

First, mitochondria are power plant of the cell. Mitochondria make energy with nutrition that we have eaten. Thanks to mitochondria, we can move, play, think, and so on!

Second, nucleus is storage place of our gene, and inheritance information. When we get our son or daughter, our informations in nucleus are transmitted to our babies. your face, heights, eye colors, all of these things are determined by informations in nucleus too!

ER

Third, endoplasmic reticulum, quite hard name, we call this organelle in short, ER. ER is street, avenue, highway in cell. Materials, molecules, and other metabolites are transported through ER.

cytoskeleton

Finally, cytoskeleton is bone of cell. Because of cytoskeleton, cells maintain their original shape.

Now I'm sure that You know about cell roughly!

Thank you for reading!
 

1. Lodish (2007). Molecular Cell Biology,6e. W.H.Freeman and Company. ISBN 0-7167-7601-4.