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Cinética Enzimática | Factores que afectan la actividad enzimática
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Cinética Enzimática | Factores que afectan la actividad enzimática

Enzymes and Their Catalytic Activity

Structure and Function of Enzymes

  • Enzymes are proteins whose catalytic activity relies on their three-dimensional structure, which is crucial for substrate binding at the active site.
  • The active site consists of amino acids and sometimes cofactors that possess electrical charges, influencing the conversion of substrates to products.

Factors Affecting Enzyme Activity

Temperature

  • Enzymes operate optimally within specific temperature ranges, which vary by organism; human enzymes function best around 37 degrees Celsius.
  • Excessive heat can lead to enzyme denaturation, resulting in a complete loss of their three-dimensional structure and overall activity.

pH Levels

  • The structure and functionality of an enzyme's active site depend significantly on the amino acid side chains, which can change charge based on pH levels.
  • Each enzyme has an optimal pH where it performs most efficiently; deviations from this pH can reduce enzymatic activity. The optimal pH varies widely depending on the natural environment of the enzyme.
Video description

Existen muchos factores en el entorno en el que la enzima se encuentra que pueden modificar la actividad enzimática, modificando en cierta forma la estructura de las enzimas, sus cargas, o bien, la interacción entre la enzima y el sustrato.

Cinética Enzimática | Factores que afectan la actividad enzimática | YouTube Video Summary | Video Highlight