urease

Thân thiện

A scientist adds urease to a test tube containing a urea solution.

Definition

1. Noun:
   • An enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia: Urease is a specific biological catalyst that breaks down the compound urea into simpler substances, carbon dioxide and ammonia, through a chemical reaction with water.
   • An enzyme present in intestinal bacteria: Urease is commonly found in certain bacteria that inhabit the intestines, where it plays a role in nitrogen metabolism.

Usage Examples

• Noun:
  • The presence of urease in the soil bacteria helps recycle nitrogen from urea-based fertilizers.
  • A common diagnostic test for the bacterium Helicobacter pylori checks for the activity of urease in the stomach lining.

Advanced Usage

• "Urease activity": Refers to the measurable rate or capacity of the urease enzyme to perform its catalytic function.
  • Scientists measured the urease activity in the bacterial culture to assess its metabolic rate.
• "Urease inhibitor": A substance that slows down or stops the action of the urease enzyme.
  • Agricultural researchers are developing urease inhibitors to improve the efficiency of urea fertilizers.

Variants and Related Words

• Ureolytic (adj): Describing an organism or process capable of decomposing urea, often through the action of urease.
  • Ureolytic bacteria are important in many environmental and industrial processes.

Synonyms

• Enzyme (specific): While "urease" is a specific enzyme, the general class is "enzyme." More precise synonyms are not common, as it refers to a unique protein with a specific function.

Related Phrases and Compounds

• Urease test: A biochemical test used in microbiology to detect the enzyme's presence, often for identifying specific bacteria.
  • The microbiology lab performed a urease test on the clinical sample.

Học thuật

Noun

1. an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia; is present in intestinal bacteria