Metabolism is the set of life-sustaining chemical reactions in organisms that involves the conversion of food to energy, building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes.
What is the difference between catabolism and anabolism?
Catabolism is the process of breaking down molecules to release energy, while anabolism is the process of building up molecules, which consumes energy.
What role do enzymes play in metabolism?
Enzymes act as catalysts in metabolic reactions, speeding up chemical reactions without being consumed by lowering the activation energy required for the reaction.
What is the metabolic rate?
Metabolic rate is the rate at which the body converts food into energy, reflecting the energy expenditure necessary to maintain basic body function.
How does ATP function in metabolism?
ATP (adenosine triphosphate) functions as the primary energy currency of the cell, providing energy for various metabolic processes such as muscle contraction and chemical synthesis.