Q21 / 180 · NEET 2016 (Phase 2) · Botany

Which of the following describes the given graph

Figure

  • A
    Endothermic reaction with energy A in presence of enzyme and B in absence of enzyme
  • Correct answer
    B
    Exothermic reaction with energy A in presence of enzyme and B in the absence of enzyme
  • C
    Endothermic reaction with energy A in absence of enzyme and B in presence of enzyme
  • D
    Exothermic reaction with energy A in absence of enzyme and B in presence of enzyme

Solution

The potential energy of the substrate is more than the product. So it is an exothermic reaction. 'A' represents the activation energy in the presence of enzyme while 'B' in the absence of enzyme i.e., enzyme lowers down the activation energy.

Figure

Hence, the correct answer is option: 'B'.

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