Enzymes

• What model is used to describe substrate enzyme binding?

  lock and key
• What is a type of enzyme that doesnt use proteins?

  Ribonucleic acid enzymes
• How do many types of drugs work?

  Inhibition the function of enzymes
• What are better at lower concentration conventional catalysts or enzymes?

  enzymes
• What are the principle feature of an enzyme-catalysed reaction?

  1. For a given initial conc of substrate, the initial rate of product formation is proportional to the total concentration od enzyme
  2. For a given E0 and high S0, the rate of product formation becomes independent of S0, reaching a maxium value known as the Maximum velocity
• what does it mean when the substrate concentration is greater than Km?

  rate is proportional to S (first order)
• what does it mean when s is greater than Km?

  The enzyme is saturated and rate reaches a maximum value and is independent of S (pseudo-zero-order)
• what is lineweaver-Burk plot?

  double reciprocal