By Melissa Papke
May 27, 2004, 06:58


Topic: Blood

ClassBrain Visitor:

What is blood made of?

ClassBrain Response:

Thank you for writing to ASK CLASSBRAIN! You've asked a great question and
we've included a partial clip from a website called Red Gold: The Epic Story
of Blood:

“Blood is a mixture of cells and a watery liquid, called plasma, that the
cells float in. It also contains other things like nutrients (such as
sugar), hormones, clotting agents, and waste products to be flushed out of
the body.”

There are three kinds of cells in the blood: red blood cells, white blood
cells, and platelets. Red blood cells carry oxygen from the lungs throughout
the body, white blood cells help fight infection, and platelets help in
clotting. For more detailed information, visit their website at:

Blood in the Body

Thanks for writing to ClassBrain!

The Staff at ClassBrain, Inc.

Learn more about blood with the help of Google

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