Enzymes as Biological Catalysts

9th Grade · Science · 40 min· Igcse Biology 5.1 Describe A Catalyst As A Substance That Increases The Rate Of A Chemical Reaction And Is Not Changed By The Reaction 2 Describe Enzymes As Proteins That Are Involved In All Metabolic Reactions, Where They Function As Biological Catalysts 3 Describe Why Enzymes Are Important In All Living Organisms In Terms Of A Reaction Rate Necessary To Sustain Life