Subunit
Subunit
Subunit (/sʌbˈjuːnɪt/) is a term used in various scientific disciplines, including biology, chemistry, and physics, to describe a distinct component of a larger structure or system.
Etymology
The term "subunit" is derived from the prefix "sub-" meaning "under" or "below", and "unit", which refers to a single, indivisible entity. Thus, a subunit is a smaller part of a larger unit.
In Biology
In biology, a subunit is a distinct component of a larger structure, such as a protein or nucleic acid. For example, the hemoglobin molecule in red blood cells is made up of four subunits. Each subunit is a protein molecule that binds to a heme group, allowing the hemoglobin molecule to carry oxygen.
In Chemistry
In chemistry, a subunit refers to a part of a larger molecule. For example, a polymer is made up of many repeating subunits, or monomers. Each monomer is a small molecule that can bind to other monomers to form a larger structure.
In Physics
In physics, a subunit can refer to a smaller part of a larger system. For example, in the study of quantum mechanics, subunits can refer to individual particles, such as quarks, that make up larger particles, such as protons and neutrons.
Related Terms
External links
- Medical encyclopedia article on Subunit
- Wikipedia's article - Subunit
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