glycolysis: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “glycolysis” mean?
The metabolic process in cells that breaks down glucose into smaller molecules, releasing a small amount of energy.
Audio
Pronunciation
Definition
Meaning and Definition
The metabolic process in cells that breaks down glucose into smaller molecules, releasing a small amount of energy.
In biochemistry, the universal anaerobic (without oxygen) pathway in the cytoplasm that converts one molecule of glucose into two molecules of pyruvate, producing a net gain of two ATP and two NADH molecules, serving as the first stage of cellular respiration or fermentation.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. Pronunciation differences exist (see IPA).
Connotations
Identical scientific connotations in both varieties.
Frequency
Used with identical frequency in academic and scientific contexts in both regions.
Grammar
How to Use “glycolysis” in a Sentence
Glycolysis + VERB (occurs, takes place, produces)Glycolysis + is + ADJECTIVE (anaerobic, essential, rapid)UNDERGO + glycolysisTHE + glycolysis + OF + glucoseVocabulary
Collocations
Examples
Examples of “glycolysis” in a Sentence
verb
British English
- Cells glycolyse glucose to obtain pyruvate.
- The tumour tissue was observed to glycolyse rapidly.
American English
- Cancer cells often glycolyze glucose even in the presence of oxygen.
- The muscle tissue will glycolyze the stored sugars during a sprint.
adverb
British English
- The energy was produced glycolytically.
- The process proceeds glycolytically under anaerobic conditions.
American English
- The cells metabolised the sugar glycolytically.
- ATP can be generated relatively quickly glycolytically.
adjective
British English
- The glycolytic pathway is highly conserved.
- They measured the glycolytic flux in the sample.
American English
- Glycolytic enzymes like hexokinase are key regulators.
- The cell's glycolytic capacity was assessed.
Usage
Meaning in Context
Business
Virtually never used. Might appear in highly specialized biotech/pharma investment reports.
Academic
Core term in biology, biochemistry, medicine, and physiology textbooks and research.
Everyday
Extremely rare. Only in simplified explanations of exercise or cellular biology.
Technical
The primary and precise context of use, detailing enzymatic steps, regulation, and bioenergetics.
Vocabulary
Synonyms of “glycolysis”
Strong
Neutral
Weak
Vocabulary
Antonyms of “glycolysis”
Watch out
Common Mistakes When Using “glycolysis”
- Pronouncing it as /ɡlɪˈkɒlɪsɪs/ (with a short 'i').
- Using it as a verb (e.g., 'The cell glycolysis glucose' is incorrect).
- Confusing it with the entire process of cellular respiration (it is only the first part).
FAQ
Frequently Asked Questions
No, glycolysis is only the first stage of cellular respiration. Cellular respiration includes glycolysis, the Krebs cycle, and the electron transport chain.
No, glycolysis is an anaerobic process. It does not require oxygen, which is why it can provide energy quickly when oxygen is scarce.
For one molecule of glucose, glycolysis yields a net gain of two molecules of ATP, two molecules of NADH, and two molecules of pyruvate.
It is a universal and ancient metabolic pathway that provides a small, quick yield of ATP and produces pyruvate, which is a central hub for further energy production or biosynthesis.
The metabolic process in cells that breaks down glucose into smaller molecules, releasing a small amount of energy.
Glycolysis is usually technical/scientific in register.
Glycolysis: in British English it is pronounced /ɡlaɪˈkɒlɪsɪs/, and in American English it is pronounced /ɡlaɪˈkɑːləsɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'GLYCO' (sugar) + 'LYSIS' (splitting). It's the process of splitting sugar (glucose) molecules.
Conceptual Metaphor
A DEMOLITION/UNPACKING PROCESS: Glycolysis is the controlled dismantling of a glucose 'package' to extract a small amount of ready-to-use energy (ATP) and valuable parts (pyruvate) for further processing.
Practice
Quiz
What is the primary location of glycolysis within a eukaryotic cell?