does any one know what the composition of blood is?

Answer 1

Do you mean the molecular composition or macroscopic composition? There would be too much to post here so I suggest you visit the following

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/B/Blood.html#formation

Answer 2

I found a pretty good explanation from wikipedia. I decided to post it's content directly. If you want more info go to the source.

"Blood is composed of several kinds of corpuscles; these formed elements of the blood constitute about 40% of whole blood. The other 60% is blood plasma, a fluid that is the blood's liquid medium, appearing yellow in color. The normal pH of human arterial blood is approximately 7.40 (normal range is 7.35-7.45). Blood that has a pH below 7.35 is acidic, while blood pH above 7.45 is alkaline. Blood pH along with arterial carbon dioxide tension (PaCO2) and HCO3 readings are helpful in determining the acid-base balance of the body. Blood is about 7% of the human body weight [1], so the average adult has a blood volume of about 5 liters, of which 2.7-3 liters is plasma. The combined surface area of all the erythrocytes in the human anatomy would be roughly 2,000 times as great as the body's exterior surface.

The corpuscles are:

Red blood cells or erythrocytes (96%). In mammals, mature red blood cells lack a nucleus and organelles. They contain the blood's hemoglobin and distribute oxygen. The red blood cells (together with endothelial vessel cells and some other cells) are also marked by proteins that define different blood types.
White blood cells or leukocytes (3.0%), are part of the immune system; they destroy infectious agents.
Platelets or thrombocytes (1.0%) are responsible for blood clotting (coagulation)
Blood plasma is essentially an aqueous solution containing 96% water, 4% blood plasma proteins, and trace amounts of other materials. Some components are:

albumin
blood clotting factors
immunoglobulins (antibodies)
hormones
various other proteins
various electrolytes (mainly sodium and chlorine)
Together, plasma and corpuscles form a non-Newtonian fluid whose flow properties are uniquely adapted to the architecture of the blood vessels"

Answer 3

Blood consists of cellular material (99% red blood cells, with white blood cells and platelets making up the remainder), water, amino acids, proteins, carbohydrates, lipids, hormones, vitamins, electrolytes, dissolved gases, and cellular wastes. Each red blood cell is about 1/3 hemoglobin, by volume. Plasma is about 92% water, with plasma proteins as the most abundant solutes. The main plasma protein groups are albumins, globulins, and fibrinogens. The primary blood gases are oxygen, carbon dioxide, and nitrogen.

Answer 4

55% plasma (which is mostly water) 44% red blood cells (aka erythrocytes) (carry oxygen and has iron) 1% white blood cells (leukocytes) (fight infection) and platelets (cause blood clotting) Hope this helps. God made us with a desire for knowledge.

Answer 5

red blood cells-96%, white blood cells-3%, platelets, 1%. Hope that helps you.

Answer 6

HI I TINK ITS PLASMA PROTIENS WATER RED BLOOD CELLS ERTHOCYTES WHITE BLOOD CELLS GOD I CANT REMBER ALL OF IT IM A BEAYTY THEARAPIST ND WE HAD TO NO ALL DAT **** N COLLEGE

Answer 7

Here's an interesting article on it!!

Answer 8

I did but I've forgotten ummm.....cells, plasma, that straw coloured stuff i can't remember the name of... i'm not much use am i

Answer 9

go to: http://www.about-tissues.com/composition-of-blood.html