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Heme Meaning: Definition, Examples, and Translations

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heme

[hiหm ]

Definition

Context #1 | Noun

biochemistry

Heme is an iron-containing compound that forms the non-protein part of hemoglobin and some other biological molecules. It plays a crucial role in transporting oxygen in the blood of vertebrates and is essential for various enzymatic reactions. Heme can exist in several forms, including heme a, heme b, and heme c, each serving different functions in the body.

Synonyms

hemoglobin, iron porphyrin, protoheme.

Examples of usage

  • Heme is essential for oxygen transport.
  • The enzyme cytochrome P450 contains heme.
  • Iron deficiency can affect heme production.

Translations

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Interesting Facts

Science

  • Heme is essential for making hemoglobin, which is the protein in red blood cells that carries oxygen.
  • In addition to blood, heme plays a role in cellular respiration within mitochondria, helping produce energy.
  • Hemo-proteins, which include heme, are found in many organisms, indicating a shared evolutionary trait.

Health

  • Deficiencies in heme can lead to anemia, a condition where there arenโ€™t enough red blood cells to carry oxygen effectively.
  • Certain dietary sources like red meat contain iron, which is crucial for heme production and overall health.

Cultural References

  • In literature, heme is often referenced in relation to blood themes, emphasizing its connection to life and vitality.
  • Some traditional medicines regard blood qualities, including heme, as a source of strength and vitality.

Technology

  • Researchers are exploring artificial blood products that mimic heme's function to address blood shortages.
  • Innovative studies are looking into using heme in biotechnological applications, such as oxygen sensors and renewable energy.

Origin of 'heme'

Main points about word origin

  • The word 'heme' comes from the Greek word 'haima', meaning 'blood'.
  • Historically, the term 'heme' was coined in the 19th century when scientists began understanding its importance in oxygen transport.

The word 'heme' derives from the Greek word 'haima' which means 'blood'. This term was first introduced in the scientific vocabulary in the 19th century as biochemists began to study the components of blood. Heme was identified as a crucial component of hemoglobin, the protein responsible for oxygen transport in the bloodstream. As research advanced, heme's role in other biological systems was uncovered, establishing its importance in cellular respiration and enzyme function. Over the years, the understanding of heme has expanded, revealing its involvement in various metabolic pathways and its significance in health and disease. Its study has implications not only in biology but also in medicine and pharmacology, leading to a greater appreciation of this small but vital molecule.

Word Frequency Rank

With rank #19,626, this word belongs to specialized vocabulary. While not common in everyday speech, it enriches your ability to express complex ideas.