![1.Phosopholipids knowledge](images/page/page01.png)
![1.Phosopholipids knowledge](images/page/page01sp.png)
Phosopholipids knowledge
Phospholipids are surprisingly a part of our everyday lives.
The term "phospholipid" may seem a bit unfamiliar.
But in fact, they are found in fish, grains, and even in our bodies!
![Phospholipids contained in various foods](images/page/page_1_6.png)
![Phospholipids contained in various foods](images/page/page_1_6.png)
We even have phospholipids in our bodies!
Current research finds that humans are made up of tens of trillions of cells.
All cells are surrounded and protected by a membrane called the cell membrane.
This membrane is in fact made of phospholipids.
![Cell structure -What is cell membrane?-](images/page/page_1_1.png)
![Cell structure -What is cell membrane?-](images/page/page_1_1sp.png)
Look how tiny phospholipids are!
Phospholipids are only a few nm (nanometers) in size.
Suppose the Earth were 1 meter in size. By comparison,
phospholipids would be just the size of a ping-pong ball!
Size of the earth: about 12,742km
Assuming a ping-pong ball 4cm in size
![If the Earth were 1m in size / 1 nanometer = 1 billionth of a meter](images/page/page_1_2.png)
![If the Earth were 1m in size / 1 nanometer = 1 billionth of a meter](images/page/page_1_2sp.png)
![Let's compare sizes!](images/page/page_1_3.png)
![Let's compare sizes!](images/page/page_1_3sp.png)
![Even our bodies have lots of phospholipids in them!](images/page/page_1_4.png)
![Even our bodies have lots of phospholipids in them!](images/page/page_1_4.png)