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2006-07-30 01:05:17 · 14 answers · asked by Sandrainbow 1 in Science & Mathematics Biology

14 answers

Red blood cells are specially adapted to their job because:
1) They are biconcave discs which gives them a large surface area for absorbing respirtory gases
2) They have elastic membranes which helps them to squeeze through capillaries with just about the same diameter as they themselves are (helps in exchange of respiratory gases with the body tissues)
3) They have no nucleus which means the cytoplasm can carry a greater amount of Oxygen
4) They have a compound called haemoglobin that combines with Oxygen to form oxyhaemoglobin - a stable compound which breaks down in a low concentration of this gas
5)They produce and enzyme called Carbonicanhydrase that helps bicarbonate ions to form so that Carbondioxide can be carried away by blood from the respiring tissues
6) About 15% of the Carbon dioxide that does not transform into bicarbonate ions is carried by red blood cells to the lungs

2006-07-30 02:34:29 · answer #1 · answered by Iluvharrypotter_tonima 2 · 7 0

Red Blood Cells Job

2016-11-07 08:59:43 · answer #2 · answered by Anonymous · 0 0

Red blood cells are produced in the red bone marrow. The marrow is located primarily in the hollows and ends of the long bones. Blood is being replaced all the time. However, since blood is made up of more stuff than red blood cells, any significant loss is too much for the body's ability to produce more. Hence when there is a lot of blood loss, a transfusion is necessary. And blood cells cannot normally be produced at a rate faster than the body dictates, so it will produce them when blood loss is very small, like a minor wound or a small internal injury. Anything larger than these will lead to an insufficient amount of blood and therefore anemia.

2016-03-27 07:00:24 · answer #3 · answered by Anonymous · 0 0

RBC's have one job, to transport blood gases! In order to pack as much Oxygen or CO2 possible, RBC's do not have any organelles such as a nucleus or mitochondria. The heme group of the chemical structure is water pulls the center in the make it concave. This allows the RBC flexibility when traveling through tiny fenestrations of blood capillaries and the aveoli sacs in the lungs.

RBC's are created by the hormone erythropoietin in marrow, kidney, and the liver. Old RBC's are then destroyed in the spleen and recycled to make new RBC's. The part that is not recycled is the billirubin, this is what makes poop brown.

There is a genetic disease that can throw this all out of whack, Sickle Cell Anemia. This is a genetic disease that cause the cell to not have its concave shape. Therefore, it can't carry blood gases and has problems transporting itself throughout the circulatory system.

2006-07-30 02:17:46 · answer #4 · answered by Emerson 5 · 0 0

WoW that's a long answer.

Look, the RBC is biconcave disc in shape to provide a larger surface area per volume ratio. It contains haemoglobin, each molecule of haemoglobin binds to four molecules of oxygen at high partial pressures of oxygen eg. near the lungs. The RBC has no nucleus to give more room to haemoglobin ( that's why the RBC doesn't divide). As the blood is transported, haemoglobin starts giving up it's oxygen to the cells where the partial pressure of oxygen is low for respiration and metabolism.

The RBC is rlly efficient since it has large surface area per volume ratio ( as it is biconcave in shape ) for faster rate of diffusion.

As soon as the blood reaches the respiring cells and tissues, and gives up it's oxygen, carbon dioxide binds to the haemoglobin ( this is NOT carboxyhamoglobin. Carboxy haemoglobin is when carbon MONOxide binds wz haemoglobin ) then the blood is transported along the veins that carry deoxygeneted blood, it enters the heart to be pumped to the lungs where it becomes oxygenated then it enters the heart again to be pumped through the aorta reachin all body parts. And the cycle goes on.

2006-07-30 05:24:15 · answer #5 · answered by •NaNNou• 2 · 0 0

Red blood cells, or erythrocytes, are wonderfully adapted to perform their function, to carry oxygen to all tissues and return carbon dioxide to the lungs for expiration. During development, the nucleated precursor erythroblast synthesizes vast quantities of globin, which joins with iron and heme to make hemoglobin. Once the level of globin mRNA is high enough, the nucleus of the precursor is extruded, and globin synthesis continues until a final mature erythrocyte is formed. Being bi-concave, and carrying an almost liquid crystal array of hemoglobin, the erythrocyte is now highly effective at binding oxygen while it is in the lungs, giving up CO2, and then traversing the circulation to wherever oxygen is needed and unloading it at that site, binding CO2 in return. After a relatively short life span, the erythrocyte is cleared from the body.

2006-07-30 02:12:42 · answer #6 · answered by Gene Guy 5 · 0 0

They are dead cells and have no living nucleas which allows them to carry more oxygen, they are extremely small cells and can fit through the smallest gaps in the body's capillaries, they have a large surface area which is ideally suited to the diffusion of oxygen and their concave shape is also suited to diffusion.

2006-07-30 01:10:07 · answer #7 · answered by ? 3 · 0 0

when the bone marrow (that which produces the rbc) produces blood, it follows an inscribed exact dna pattern that creates the red blood cell's functions in the body. most of the cells differentiate upon meiosis...

2006-07-30 01:14:03 · answer #8 · answered by fobel 2 · 0 0

-RBC or erythrocytes contain the oxygen carrying protein haemoglobin,which is a pigment that gives whole blood its red color.
-RBCare highly specialized for their oxygen transport function.
-It generate ATP anaerobically.
-Haemoglobin also plays a role in regulation of blood floww and blood pressure.

2006-07-30 03:45:13 · answer #9 · answered by Huma 2 · 0 0

They contain hemoglobin, a substance that binds with O2 and carries it to all the organs of the body and returns CO2 to the lungs to be expelled.

2006-07-30 01:27:56 · answer #10 · answered by Anonymous · 0 0

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