Question

The given graph shows the effect of substrate concentration on rate of reaction of enzyme Green Gram phosphatase. What does the graph indicate?

• A. Formation of enzyme substrate complex.
• B. Increase of pH at higher concentration of substrate.
• C. Presence of enzyme inhibitor.
• D. Rate of reaction is directly proportional to substrate concentration.

Answer 1

Answer: (C)

Presence of enzyme inhibitor.

In the given graph, initially the rate of enzymatic reaction increases but after some time it begins to slow down which indicates the presence of an enzyme inhibitor.

So, the correct answer is 'Presence of enzyme inhibitor.'.