mitochondrion
UK[ˌmaɪtəʊˈkɒndriən]US[ˌmaɪtəˈkɑːndriən]
n
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
Morpheme Breakdown
mito
chondrion
mito
thread
chondrion
granule
Etymology
The term 'mitochondrion' is a modern scientific coinage from the late 19th century, directly constructed from Greek elements. It was formed by combining 'mitos' (thread) and 'chondrion' (small granule) to provide a descriptive, literal name for the cellular structures observed under early microscopes. These organelles appeared as small, thread-like granules within the cell's cytoplasm. The name elegantly captures their visual morphology, which was the primary basis for their initial identification, before their critical role in cellular respiration and energy production was fully understood.
Analysis
Structure: mito (thread) + chondrion (granule)
- mito: From Greek 'mitos', meaning "thread". In this word, it functions as a root indicating a thread-like structure.
- chondrion: From Greek 'chondrion', a diminutive of 'chondros', meaning "grain, granule". In this word, it functions as a root indicating a small, granular particle.
Examples
The mitochondrion is often referred to as the powerhouse of the cell.
Each mitochondrion has its own DNA, separate from the cell's nuclear DNA.
Muscle cells contain a high density of mitochondria to meet their energy demands.