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Tag Archives: haemoglobin

Containers for Haemoglobin

Thursday, December 3, 2009

It is very convenient to transport haemoglobin in a spe­cial container inside the erythrocytes, but, as the saying goes, every cloud has a silver lining. The erythrocyte, being a living cell, does itself consume a great deal of oxygen. Nature hates wastefulness and had to think hard of a way of cutting down this unnecessary [...]

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Red Blood Corpuscles

Tuesday, December 1, 2009

From the outset, nature went in for creating very large molecules, from ones with a molecular weight twice that of an atom of hydrogen, the lightest substance, to ones occasionally even ten million times greater. Such proteins cannot pass through the cell membranes. They ‘get stuck’ even in quite large pores, and this is why [...]

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Blood’s Main Function

Sunday, November 29, 2009

The main function of the blood is transportation. It carries warmth all over the body, takes nutrients from the intestine and oxygen from the lungs and delivers them where necessary.
In lower animals, oxygen and all the other essential substances are merely dissolved in the fluid which circulates throughout their bodies. Higher animals evolved a special [...]

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