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Question

The function of enzymes in the living system is to :
  1. Transport oxygen
  2. Provide immunity
  3. Catalyse biochemical reaction
  4. Provide energy

A
Provide energy
B
Provide immunity
C
Transport oxygen
D
Catalyse biochemical reaction
Solution
Verified by Toppr

Enzymes are large biomolecules that are responsible for many chemical reactions that are necessary to sustain life. Enzyme is a protein molecule and are biological catalysts. Enzymes increase the rate of the reaction. Enzymes are specific, they function with only one reactant to produce specific products.
Characteristics of enzymes are as follows:
  • Enzymes possess great catalytic power.
  • Enzymes are highy specific.
  • Enzymes show varying degree of specificities.
  • Absolute specificity where the enzymes react specifically with only one substrate.
  • Stereo specificity is where the enzymes can detect the different optical isomers and react to only one type of isomer.
  • Reaction specific enzymes, these enzymes as the name suggests reacts to specific reactions only.
  • Group specific enzymes are those that catalyze a group of substances that contain specific substances.
  • The enzyme activity can be controlled but the activity of the catalysts can not be controlled.
  • All enzymes are proteins.
  • Like the proteins, enzymes can be coagulated by alcohol, heat, concentrated acids and alkaline reagents.
  • At higher temperatures the rate of the reaction is faster.

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