As a result of its involvement in a reaction, an enzyme is unchanged.
Enzymes are catalysts that speed up chemical reactions that occur within the biological systems (they increase the reaction rate by lowering its activation energy). Enzymes react with substrate that binds to them (key-lock mechanism) and convert the substrate into the product. Most of enzymes are proteins by their structure but a few are catalytic RNA molecules-ribosymes.
Enzyme activity can be affected by other molecules (activators and repressors), pH, temperature etc.
As a result of its involvement in a reaction, an enzyme is unchanged.
The correct option is (E) unchanged.
Enzymes are made up of proteins that fasten the reaction without getting mix or involve in the reaction.
Trypsin, pepsin, salivary enzyme, zymases, hydrases are examples of some enzyme.
Specific enzyme catalyze specific reactions. They are named after their work.
The amount of enzyme use in reaction does not change because it does not involve in any reaction, they just increase the rate of reaction and then remove from the reaction.
Thus, the correct option is unchanged (E).
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