creatine
Definition
- Noun:
- A nitrogenous organic acid that is not a constituent of proteins but is found in the muscle tissue of vertebrates, both in its free form and as phosphocreatine. It plays a crucial role in supplying energy for muscle contraction.
Usage
- Noun:
- The compound "creatine" is synthesized in the liver and kidneys.
- Many athletes take creatine supplements to enhance their performance and recovery.
Examples
- Noun:
- Creatine is stored in muscles and used for quick bursts of energy.
- The doctor explained the role of creatine in cellular energy production.
Advanced Usage
- "Creatine phosphate" or "phosphocreatine": The phosphorylated form of creatine, which serves as a rapid reserve of high-energy phosphate in muscle and nerve cells.
- During intense exercise, phosphocreatine donates a phosphate group to ADP to rapidly regenerate ATP.
Variants and Related Words
- Creatinine (n): A breakdown product of creatine phosphate in muscle, typically excreted in urine and used as an indicator of kidney function.
- Elevated creatinine levels in the blood can suggest impaired kidney function.
Synonyms
- N-(aminoiminomethyl)-N-methylglycine: The systematic IUPAC name for creatine.
Noun
-
an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction
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