Q. 145.0( 3 Votes )

Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processes are enzyme mediated. Which of the following reactions is not engyme-mediated in biological system?
A. Dissolving CO2 in water

B. Untwining the two strands of DNA

C. Hydrolysis of sucrose

D. Formation of peptide bond

Answer :

Helicase helps in unwinding of DNA helix.


Sucrose is hydrolysed into glucose and fructose with the help of enzyme sucrase.


Peptidyl transferase is involved in peptide bond formation.

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