catabolite: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “catabolite” mean?
A substance produced during the breakdown of complex molecules in living organisms.
Audio
Pronunciation
Definition
Meaning and Definition
A substance produced during the breakdown of complex molecules in living organisms.
Any product of catabolism, the metabolic process that breaks down molecules to release energy or simpler components. In microbiology, often refers to small molecules that can influence gene expression, such as in catabolite repression.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. Pronunciation differs slightly (see IPA).
Connotations
Identical technical connotations in both varieties.
Frequency
Equally rare and specialised in both UK and US contexts, confined to scientific discourse.
Grammar
How to Use “catabolite” in a Sentence
The [SUBSTANCE] is a catabolite of [COMPLEX MOLECULE].[ORGANISM] produces [CATABOLITE] during [PROCESS].Vocabulary
Collocations
Examples
Examples of “catabolite” in a Sentence
adjective
British English
- The catabolite repression mechanism is well-studied in E. coli.
American English
- Researchers observed a strong catabolite effect on gene expression.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in advanced biochemistry, microbiology, and medical research papers and textbooks.
Everyday
Not used.
Technical
Core term in describing metabolic pathways, microbial physiology, and genetic regulation systems like catabolite repression.
Vocabulary
Synonyms of “catabolite”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “catabolite”
- Misspelling as 'catabolyte' or 'catobolite'.
- Using it to refer to the process (catabolism) instead of the product.
- Confusing it with 'catabolic', which is the adjective form.
FAQ
Frequently Asked Questions
Not exactly. 'Metabolite' is a broader term for any substance involved in metabolism. A catabolite is specifically a product of catabolism (breakdown). All catabolites are metabolites, but not all metabolites are catabolites (some are anabolites, from building processes).
Almost exclusively in advanced textbooks, research papers, or lectures in biochemistry, molecular biology, microbiology, and related life sciences.
No. The word is a noun. The related verb is 'catabolize' (US) / 'catabolise' (UK), meaning to break down a substance.
A key regulatory mechanism in bacteria where the accumulation of a catabolite (often from a preferred energy source like glucose) represses the expression of genes needed to metabolise alternative nutrients.
A substance produced during the breakdown of complex molecules in living organisms.
Catabolite is usually technical/scientific in register.
Catabolite: in British English it is pronounced /kəˈtæb.ə.laɪt/, and in American English it is pronounced /kəˈtæb.ə.laɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'CATAbolite' comes from CATAbolism, which BREAKS things DOWN (like a CATastrophe breaks things apart). A catabolite is the RESULT of that breaking down.
Conceptual Metaphor
WASTE/REMAINS (from a dismantling process), FUEL SOURCE (as some catabolites are used for energy).
Practice
Quiz
What is a 'catabolite' primarily?