What are the structure and function of erythrocytes?

Answer 1

Red blood cells are the most common type of blood cell and the vertebrate body's principal means of delivering oxygen from the lungs or gills to body tissues via the blood.

Red blood cells are also known as RBCs or erythrocytes (from Greek erythros for "red" and kytos for "hollow", with cyte nowadays translated as "cell").

Answer 2

Erythrocytes Structure

Answer 3

Erythrocytes=Red blood cells

SHAPE
Erythrocytes is a biconcave disk-shaped structure.
Front view: Round
Side view : Biconcave

STRUCTURE
Erythrocytes do not contain a nucleus. They do contain haemoglobin, which fills almost the entire cytoplasm.

FUNCTION
Erythrocytes function in the transport of oxygen. Haemoglobin, the oxygen binding protein in erythrocytes, contributes about 30% of the weight of an erythrocyte. The lifespan of an erythrocyte in the bloodstream is 100-120 days.
About 5×1011 erythrocytes are formed/destroyed each day.

Answer 4

Erythrocytes are Red Blood Cells(one of thye cellular components present in blood)

Structure:
erythrocytes are biconcave disks: flattened and depressed in the center, with a dumb-bell shaped cross section. In large blood vessels, red blood cells sometimes occur as a stack, flat side next to flat side. This is known as rouleaux formation, and it occurs more often if the levels of certain serum proteins are elevated, as for instance during inflammation.
function:
Erythrocytes consist mainly of haemoglobin, a complex molecule containing heme groups whose iron atoms temporarily link to oxygen molecules in the lungs or gills and release them throughout the body. Oxygen can easily diffuse through the red blood cell's cell membrane. Haemoglobin also carries some of the waste product carbon dioxide back from the tissues. (In humans, less than 2% of the total oxygen, and most of the carbon dioxide, is held in solution in the blood plasma). A related compound, myoglobin, acts to store oxygen in muscle cells.
other imp information:
Erythrocytes in mammals are anucleate when mature, meaning that they lack a cell nucleus and thus have no DNA. In comparison, the erythrocytes of nearly all other vertebrates have nuclei; the only known exception is salamanders of the Batrachoseps genus. Mammalian erythrocytes also lose their other organelles including their mitochondria and produce energy by fermentation, via glycolysis of glucose followed by lactic acid production. Furthermore, red cells do not have an insulin receptor and thus glucose uptake is not regulated by insulin. As a result of the lack of nucleus and organelles, the cells cannot produce new structural or repair proteins or enzymes and their lifespan is limited.

Answer 5

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What are the structure and function of erythrocytes?

Answer 6

erythrocytes if i'm not mistaken are red blood cells. They carry oxygen to the various tissues and organs of the body.

Answer 7

erythrocytes are the constituents of blood.it is also known as r.b.c.means red blood corpuscles.they help in transportation of oxygen to different parts of our body by means of hemoglobin present in it.

Answer 8

Normally the RBC's are disk shaped and biconcave.

the biconcave shape has many advantages:
-it helps in equal and rapid diffusion of oxygen
-these cells can squeeze through capillaries due to their shape

Functions :
- transport of oxygen from lungs to the tissues.
- transport of carbon dioxide from tissues to the lungs.
- acts as a buffer and aids in maintenace of acid-base balance.
- RBC's contain antigens and Rh factor and help in blood group antigen.

Answer 9

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They are sort of donut shaped. Their purpose is to carry oxygen to the body tissues.

Answer 10

its biconcave shape creates a high surface area to volume ratio, which complements its main function (gas exchange)