Question

which kind of series of chemical reaction in the body of organism is necessary
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Answer 1

A large set of protein catalysts, called enzymes are required for both synthesis and decomposition chemical reactions. Because all matter tends toward disorganized states, constant input of energy is required by all cells to maintain chemical and physical organization.

Answer 2

Answer:

All organisms require energy to complete tasks; metabolism is the set of the chemical reactions that release energy for cellular processes.

1. All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments; metabolism is the set of the processes that makes energy available for cellular processes.
2. Metabolism is a combination of chemical reactions that are spontaneous and release energy and chemical reactions that are non-spontaneous and require energy in order to proceed.