oxidase
LowTechnical/Scientific
Definition
Meaning
An enzyme that catalyses an oxidation-reduction reaction, specifically using oxygen as the electron acceptor.
A biological catalyst that facilitates the transfer of electrons to molecular oxygen, often playing crucial roles in metabolic pathways like respiration and detoxification.
Linguistics
Semantic Notes
Always refers to a specific type of oxidoreductase enzyme. In biochemical contexts, it's often part of a compound name (e.g., 'cytochrome c oxidase', 'glucose oxidase'). The '-ase' suffix is standard for enzymes.
Dialectal Variation
British vs American Usage
Differences
No spelling or significant usage differences exist. Pronunciation differs slightly.
Connotations
Identical technical connotations in both varieties.
Frequency
Used with equal, low frequency in relevant scientific fields in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[enzyme] oxidase (e.g., cytochrome oxidase)[substrate] oxidase (e.g., glucose oxidase)oxidase [noun] (e.g., oxidase activity)Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Virtually never used outside biotechnology/ pharma R&D contexts.
Academic
Common in biochemistry, molecular biology, medical, and biological science papers and textbooks.
Everyday
Not used in everyday conversation.
Technical
Core term in enzymology and metabolic pathway descriptions.
Examples
By CEFR Level
- The researcher identified a new bacterial oxidase.
- A deficiency in this oxidase can cause metabolic disease.
- Cytochrome c oxidase, the terminal complex in the mitochondrial electron transport chain, is essential for aerobic respiration.
- The study characterised the kinetic properties of the recombinant polyphenol oxidase.
Learning
Memory Aids
Mnemonic
Think: 'Oxi-' (like oxygen/oxidation) + '-ase' (standard enzyme ending). It's the enzyme that 'oxidises'.
Conceptual Metaphor
A specialised machine or worker on an assembly line that specifically handles the 'oxygen-adding' step in a chemical process.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'оксидаза' which is the direct equivalent and correct. Avoid using a broader term like 'фермент' or 'окислитель' which are less precise.
Common Mistakes
- Misspelling as 'oxidaze' or 'oxydase'. Using it as a general verb (e.g., 'it oxidases the substrate' is incorrect; 'it catalyses oxidation via an oxidase' is correct).
Practice
Quiz
What is the primary function of an oxidase enzyme?
FAQ
Frequently Asked Questions
No, 'oxidase' is strictly a noun referring to a class of enzymes. The related verb is 'oxidise'.
Oxidases transfer electrons to oxygen, typically producing water or hydrogen peroxide. Oxygenases incorporate oxygen atoms directly into the substrate molecule.
No, it is a highly specialised scientific term. In general contexts, you would say 'an enzyme that uses oxygen' or similar.
Yes, for example, a 'monoamine oxidase inhibitor' (MAOI) is a class of antidepressant drugs, and a 'glucose oxidase' test is used in some blood glucose monitoring strips.