This post will go through the changing composition of blood through the body for Prelim Biology.
What is Blood Made up Of?
This video will go through the various components of blood.
If you are interested, this video will go through the general composition of blood in greater depth.
Changing Composition of Blood Throughout the Body
Blood is circulated everywhere, it is the medium which picks up fresh oxygen in the lungs and delivers it back deoxygenated and with carbon dioxide so that gas exchange may once again occur. It is also where nutrients are diffused from the digestive system, blood will then carry those nutrients to various cells all around the body. Furthermore, blood will carry waste products from liver cells such as urea and transport it to the kidneys where it can then be removed via urine.
This video only explores how oxygen travels throughout the body.
Want to learn more? Check out more of our Preliminary Biology resources here!