mitochondria
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The structures inside cells that produce most of the energy a cell needs to function.
Usage notes
"Mitochondria" is plural; a single one is called a "mitochondrion".
Test yourself
Which word fits the gap? "_____ are often called the powerhouse of the cell."
Answer: mitochondria
In your own words, what does "mitochondria" mean?
The structures inside cells that produce most of the energy a cell needs to function.
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