Haem- definitions
| Word backwards | -meah |
|---|---|
| Part of speech | The word "haem-" is a prefix used in medical terminology to indicate a relationship with blood. It is not a traditional part of speech, but rather a combining form that is added to words to form new medical terms related to blood. |
| Syllabic division | haem- has one syllable |
| Plural | The plural of the word "haem-" is "haema-". |
| Total letters | 4 |
| Vogais (2) | a,e |
| Consonants (2) | h,m |
Haem or heme, also known as heme in the United States, is a crucial component of hemoglobin. Hemoglobin is a protein present in red blood cells that carries oxygen throughout the body. Haem is responsible for the red color of blood and plays a vital role in the oxygen transport process.
Structure of Haem
Haem is composed of an iron atom that is bound to a heterocyclic ring structure called porphyrin. This unique structure allows haem to bind and release oxygen molecules efficiently. The iron atom in haem can transition between ferrous (Fe2+) and ferric (Fe3+) states, enabling it to carry oxygen and participate in various biological reactions.
Function of Haem
One of the primary functions of haem is its involvement in oxygen transport. When oxygen molecules enter the lungs, they bind to the iron atom in haem, forming oxyhemoglobin. This complex is then transported via red blood cells to different tissues where oxygen is released for cellular respiration.
Role in Enzymes
Haem is also a vital component of various enzymes known as cytochromes. These enzymes play a crucial role in electron transport chains, which are essential for generating energy in the cells. Cytochromes contain haem groups that help in the transfer of electrons during metabolic processes.
Moreover, haem is involved in the breakdown of old or damaged red blood cells in the body. The iron from haem is recycled and used for the production of new red blood cells, ensuring the continuous supply of oxygen-carrying hemoglobin.
Haemoglobin and haem are indispensable for maintaining the overall health and functioning of the body. Understanding their structure and functions sheds light on the importance of these components in oxygen transport and cellular metabolism.
Haem- Examples
- The haemoglobin in my blood carries oxygen to all parts of my body.
- The doctor ordered a haemogram to check my blood cell levels.
- Iron is essential for the production of haem in red blood cells.
- The haematologist specializes in disorders of the blood and haemopoietic tissues.
- A deficiency in haem production can lead to anemia.
- Haemoptysis is the medical term for coughing up blood.
- The haem-induced color change in the solution indicated the presence of blood.
- Haemangiomas are benign tumors made up of blood vessels.
- The haemocoel is the primary body cavity of many invertebrates.
- Haemoconcentration occurs when there is a decrease in plasma volume.