what is the hemoglobin's role in our blood?

Question

^_^ thanks

Answer 1

Here is the simple answer

Hemoglobin carries oxygen from out lungs to the rest of the body, and carries carbon dioxide from the rest of our body back to our lungs

Answer 2

It actually carries two gases--the oxygen to the tissues and CO2 to the lungs. It lives and works in the red blood cells (RBCs) and RBCs live on average about 3 months. Your body completely rebuilds your blood every 3 months. Pretty cool, don't you think?

If you spread out the 4 micron thick surface area where hemoglobin works in your lungs that thin surface would cover a area the size of a tennis court. CO2 is released at this surface and oxygen is picked up. To help this work good take a real deep breath every hour or so, hold it at full and then exhale slowly.

Answer 3

Hemoglobin is a protein that is carried by red cells. It picks up oxygen in the lungs and delivers it to the peripheral tissues to maintain the viability of cells. Hemoglobin is made from two similar proteins that "stick together". Both proteins must be present for the hemoglobin to pick up and release oxygen normally......

Answer 4

Hemoglobin or haemoglobin (frequently abbreviated as Hb or Hgb) is the iron-containing oxygen-transport metalloprotein in the red blood cells of the blood in vertebrates and other animals; in mammals the protein makes up about 97% of the red cell’s dry content, and around 35% of the total content including water. Hemoglobin transports oxygen from the lungs or gills to the rest of the body, such as to the muscles, where it releases the oxygen load. Hemoglobin also has a variety of other gas-transport and effect-modulation duties, which vary from species to species, and which in invertebrates may be quite diverse.

The name hemoglobin is the concatenation of heme and globin, reflecting the fact that each subunit of hemoglobin is a globular protein with an embedded heme (or haem) group; each heme group contains an iron atom, and this is responsible for the binding of oxygen. The most common type of hemoglobin in mammals contains four such subunits, each with one heme group.

Mutations in the genes for the hemoglobin protein in humans result in a group of hereditary diseases termed the hemoglobinopathies, the most common members of which are sickle-cell disease and thalassemia. Historically in human medicine, the hemoglobinopathy of sickle-cell disease was the first disease to be understood in its mechanism of dysfunction, completely down to the molecular level. However, not all of such mutations produce disease states, and are formally recognized as hemoglobin variants (not diseases).[1][2]

Hemoglobin (Hb) is synthesized in a complex series of steps. The heme portion is sythesized in both the the mitochondria and cytosol of the immature red blood cell, while the globin protein portions of the molecule are sythesized by ribosomes in the cytosol [3]. Production of Hb continues in the cell throughout its early development from the proerythroblast to the reticulocyte in the bone marrow. At this point, the nucleus is lost in mammals, but not in birds and many other species. Even after the loss of the nucleus in mammals, however, residual ribosomal RNA allows further synthesis of Hb until the reticulocyte loses its RNA soon after entering the vasculature (this hemoglobin-synthetic RNA in fact gives the reticulocyte its reticulated appearance and name).

The empirical chemical formula of the most common human hemoglobin is C2952H4664N812O832S8Fe4, but as noted above, hemoglobins vary widely across species, and even (through common mutations) slightly among subgroups of humans.

Answer 5

This is part of the red blood cell content and clotting agent in the bloodstream.

Answer 6

See http://en.wikipedia.org/wiki/Hemoglobin for the information you are searching for.

good luck!!!

Answer 7

'Haemoglobin (British spelling,) is the red substance in blood, which combines with oxygen and carries it around the body."

Answer 8

very easy, it carries oxygen from alveolus to our cells, and carries carbondioxide from cells back to alveolus, in lungs.

Answer 9

make it red