Is this a trick question Ms. K2?

K. Thinking back to four years of Biology in high school, I'm gonna say it's colorless. The platelets are where the oxygen
is so they appear red. I probably screwed that up. Dunno.




If it's a trick question, my answer is still "no".

Here. Yinz guys figure it out.

MadSci Network: General Biology
Query:
Re: Color of blood that is still inside the human body
Date: Tue Aug 15 11:36:24 2000
Posted By: Lillian Mundt, Faculty, Clinical Laboratory Sciences Department
Area of science: General Biology
ID: 966176488.Gb Message:


What color is blood …really ?
Human blood is made up of a liquid part and a solid part.
The liquid part, when it is still in the body, is called plasma.
It is yellowish in color. It makes up about 50 - 60 % of our blood.
The solid part is made up of cells; red blood cells, white blood cells
and platelets.

White blood cells and platelets have no color but appear white when they
are grouped together, as when blood is separated in a centrifuge. Together
they make up less than 1 % of the blood. They are pictured in text books
as having a variety of colors. This is because they can be stained with
various dyes after they are removed from the body then placed on a glass
slide.

Red blood cells are always red. Since RBCs make up about 40-45% of our
blood, the blood is red. Red blood cells are red because they have a
protein called hemoglobin which contains iron. Iron likes to bind oxygen.
Oxygen combined with iron is red. The more oxygen iron has bound to
it, the redder it is.

It is true that some persons have "iron poor blood". In this case their
red blood cells are less red than normal, but they are still red. The
iron in the hemoglobin of red blood cells is what carries oxygen to every
tissue in the body.

Why some people may think that blood can be blue is probably because of the
color of our veins, which may be visible near the skin's surface. They
appear blue because they do not get as much oxygen as the other tissues.

When the red blood cells go to the lungs, the iron in them picks up oxygen.
Blood then goes to the heart and then to the rest of the body through
vessels called arteries. The arteries appear reddish as do many other
organs, because the iron in the blood gives up its oxygen to the cells that
need it as the red blood cells travel throughout the body. By the time the
blood is back on its way to the heart and then to the lungs it has less
than half as much oxygen as it did before. The veins, therefore, do not
get as much oxygen as the other tissues and they appear bluish.

The bottom line is: blood is red.

...................ORANGE!!!!


Red + yellow = orange. There. Problem solved.

Aliens have green blood. Dunno if they're snooty or not.

It's not a trick question, just one to get people to think.

I think that it will take an alien invasion from outer space to get ALL HUMANS to realize that we HUMANS need to relate to each other AS humans and embrace our sameness, instead of using our differences as an excuse for intolerance toward each other.

I thought it was blue,but what does a dirt farmer know?

ROFLMAO!

That's okay, Mz. O. Your blood is still human.

John Ashcroft (Attorney General)
"Civilized people – Muslims, Christians, and Jews – all understand that the source of freedom and human dignity is the Creator."