nitrogen balance

Thân thiện

A scientist measures nitrogen balance in a soil sample.

Definition

Noun: - A state of equilibrium in nitrogen metabolism: The condition in which the total amount of nitrogen entering an organism (or system) equals the total amount of nitrogen being excreted or lost. It indicates that protein intake matches protein breakdown and loss. - A quantitative measure in biology and agriculture: The difference between the nitrogen intake (e.g., from food, fertilizer) and nitrogen output (e.g., in urine, feces, crop harvest). A positive, negative, or zero balance provides information about growth, health, or soil fertility.

Usage Examples

• Noun:
  • A healthy adult typically maintains a neutral nitrogen balance.
  • The study measured the athlete's nitrogen balance to assess if their protein intake was sufficient for muscle repair.
  • A positive nitrogen balance is crucial for a growing child or a pregnant woman.
  • Farmers aim for a positive nitrogen balance in the soil to ensure good crop yields.

Advanced Usage

• "To be in nitrogen balance": Describes the state of equilibrium.
  • After recovering from the illness, the patient is finally in nitrogen balance.
• "To achieve a positive/negative nitrogen balance": Refers to intentionally reaching a specific metabolic or agricultural state.
  • Bodybuilders strive to achieve a positive nitrogen balance during training phases.

Variants and Related Words

• Nitrogen equilibrium: A synonym for a state of neutral nitrogen balance.
• Nitrogen retention: Often associated with a positive nitrogen balance, where the body retains more nitrogen than it excretes.

Synonyms

• Nitrogen equilibrium (specifically for a neutral state)
• Nitrogen status (a more general term for the condition)

Related Concepts (Not Phrasal Verbs)

• Anabolism and Catabolism: The metabolic processes of building up and breaking down molecules, directly related to nitrogen balance states.
• Protein turnover: The continuous process of protein synthesis and degradation, which determines nitrogen balance.

Học thuật

Noun

1. the balance between the amount of nitrogen taken in (to the soil or the body) and the amount given off (lost or excreted)