Question

Y bLoOd DoEsNT RuStZ iNsYd BoDy______???______CLeArY DeFyN PLXx_____
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Answer 1

Explanation:

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Blood clotting factors are intrinsic and extrinsic. Intrinsic factors when are in cells, tissues and plasma blood do not clot. Some of the factors as surface activation factor stimulates blood to clot when exposed.

Inside the body liver secretes a substance called heparin. This prevents clotting of blood in blood vessels. But if there is internal injury, platelets break to release a thermoplastic substance. It initiates clotting.

Answer 2

If the blood in our body contains iron, why doesn't it rust?

All these answers that go into detail about iron being bound to other kinds of molecules and the speed with which the iron reacts with the different molecular forms are correct. But these biologist and doctors have forgotten one important point that is of great importance for this question. Rust is formed when ferric oxide -Fe2 O3 attaches to water molecules to form Fe(III)O plus a varying number of H2O molecules. All the iron in the human body is the Ferrous form and Fe(II)O is a black powder that does not attach to water molecules to form the orangish red flaky stuff we call rust. The iron in your blood does not rust because the human body cannot absorb ferric iron, only ferrous iron.

The Lewis diagram for ferric oxide that forms rust is

O=Fe-O-Fe= O. A bent molecule with two double bonds , two single bods, 3 O and 2 Fe it is shaped approximately like an elongated upside down W.

The Lewis diagram for the ferrous oxide that does form in our blood is

Fe= O a straight molecule with one Fe, one O and one double bond.