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Respiration In Plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYRespiration In Plants3 Marks
Question
When a substrate is being metabolized, why does not all the energy that released in one step. It is released in multiple steps.What is the advantage of step-wise release?
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Answer

A single step release of large amount of energy will be harmful to the cell as most of it will remain unutilized and would cause damage to cellular organisation.
Step-wise release of small amount of energy is useful as:
  1. It can be trapped and stored for later use.
  2. There will be little wastage.
  3. Process of energy release can be controlled as per requirement.
  4. It produces a number of intermediates which are used for synthesis of several types of substances.

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