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Proteinâenergy wasting (PEW) is the state of decreased body stores of protein and energy fuels (that is, body protein and fat masses). This abnormality is often associated with diminished functional capacity related to metabolic stresses.
Enzymes & the Need for Energy. 1: Enzymes. â¢ Catalysts: substances that speed up chemical reactions without being affected by the reactions themselves. â¢ Enzyme: a protein that increases the rate of reactions by lowering the activation energy. â¢ Activation Energy: the amount of energy needed to start a chemical reaction.