Name the disease where blood cells do not carry enough oxygen?

Answer 1

Red blood cells, which are smaller then the normal ones are called microcytes. They are generally less than 6um, while normal, mature red blood cells measure 7-8 um in diameter. The reason for the smaller size is inefficient or defective haemoglobin production.

Iron deficiency anaemia happens if the body hasn't got enough iron for the haemoglobin synthesis (production). Haemoglobin, a large protein, contains heme groups with iron atoms. It is where the oxygen is carried (and the carbon dioxide as well). The body has iron storages, and normally loses very little iron. But, if more iron is needed (bleeding, rapid adolescence growth, pregnancy, lactation, for example), and the intake of dietary iron is not enough, the storages got depleted.

The produced red blood cells (as they have less haemoglobins in them) will be smaller and also paler (hypochromic), as haemoglobin is the pigment which gives the red colour to the red blood cells.

Thalassaemia is another disease which characteristically has small (microcytic) and pale (hypochromic) red blood cells. Thalassaemia is an inherited condition in which the haemoglobin are defective. The defective red blood cells got destroyed much sooner than normal red blood cells are.

In both conditions, the decreased haemoglobin leads to anaemia, the insufficient oxygenation of body tissues.

Answer 2

Anemia is a condition characterized by the inability of red blood cells to carry the required amount of oxygen to tissues

Answer 3

Hemoglobin Haemoglobin.

Answer 4

Anemia