mitochondrion


mi·to·chon·dri·on

noun \ˌmī-tə-ˈkän-drē-ən\
plural mi·to·chon·dria\-drē-ə\

Definition of MITOCHONDRION

:  any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes — see cell illustration
mi·to·chon·dri·al \-drē-əl\ adjective

Origin of MITOCHONDRION

New Latin, from Greek mitos thread + chondrion, diminutive of chondros grain
First Known Use: 1901

mi·to·chon·dri·on

noun \ˌmīt-ə-ˈkän-drē-ən\   (Medical Dictionary)
plural mi·to·chon·dria \-drē-ə\

Medical Definition of MITOCHONDRION

: any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes—called also chondriosome
mi·to·chon·dri·al \-drē-əl\ adjective
mi·to·chon·dri·al·ly \-ē\ adverb

Illustration of MITOCHONDRION

mitochondrion

noun    (Concise Encyclopedia)

Membrane-bound organelle located in the cytoplasm of almost all eukaryotic cells, the primary function of which is to generate energy in the form of adenosine triphosphate (ATP). Other functions of mitochondria include storing calcium for cell signaling activities, generating heat, and mediating cell growth and death. Mitochondrial deoxyribonucleic acid (mtDNA) is inherited by an offspring from its mother. Maternal inheritance enables the transmission of mtDNA to be traced down a single line of ancestors through many generations; this has become a vital area of research in studies on human evolution and migration.

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