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Biology · BIOMOLECULES

हिन्दी

In the reaction: \( \text{CO}_2 + \text{H}_2\text{O} \xrightarrow{\text{Carbonic anhydrase}} \text{H}_2\text{CO}_3 \), how many molecules of \( \text{H}_2\text{CO}_3 \) are produced per second in the presence of the enzyme compared to uncatalyzed conditions?

  1. 600,000 molecules per second with enzyme versus ~200 molecules per hour without enzyme
  2. 200 molecules per second with enzyme versus 600,000 molecules per hour without enzyme
  3. 60,000 molecules per second with enzyme versus 2,000 molecules per hour without enzyme
  4. 10 million molecules per second with enzyme versus 600,000 molecules per hour without enzyme

Correct answer · Option 1

600,000 molecules per second with enzyme versus ~200 molecules per hour without enzyme

Explanation

Without an enzyme, only about 200 molecules of H2CO3 are formed in an hour. With carbonic anhydrase, about 600,000 molecules are formed every second, speeding the reaction by about 10 million times.
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