Krebs citric acid cycle
- noun
- /krɛbz ˈsɪtrɪk ˈæsɪd ˈsaɪkəl/
- Specialized
- During aerobic respiration, the Krebs citric acid cycle plays a crucial role in generating cellular energy.
Examples
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The Krebs citric acid cycle occurs within the mitochondria of plant and animal cells.
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During the Krebs citric acid cycle, ATP is produced.
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Students often study the Krebs citric acid cycle in their high school biology classes.
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The Krebs citric acid cycle is essential for cellular respiration.
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During aerobic respiration, the Krebs citric acid cycle plays a crucial role in generating cellular energy.
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The Krebs citric acid cycle occurs within the mitochondria of plant and animal cells.
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Students often study the Krebs citric acid cycle in their high school biology classes.
Synonyms
A series of chemical reactions in cells that make energy, carbon dioxide, and water
A series of chemical reactions in the mitochondria of cells that make energy
A series of chemical reactions in cells that make energy from food
Surface Forms
Morphology
The elements 'citric', 'acid', and 'cycle' are compositionally transparent so a B1 learner who knows those words could infer this refers to a repeated process involving citric acid. However, the full biomedical sense (an enzymatic mitochondrial pathway producing cellular energy) and the eponym 'Krebs' require specialist knowledge, so the precise meaning is not fully predictable from the parts.
Etymology
Krebs citric acid cycle was named for scientist Krebs and the molecule citric acid, because Krebs showed that a set of reactions in cells starts with citric acid and goes in a circle. Think of a small wheel of steps turning inside a cell to make energy, so the name now means the cell's energy-making 'cycle'.