All living organisms are made up of the functional and structural unit, cells. The cells carry out vital functions required for the survival of the organism.
The correct option is:
Option C. enzyme-controlled reactions
- Survival is defined as the existence of an organism, which performs vital functions like respiration, excretion, and digestion.
- These metabolic processes at the cellular level are catalyzed by enzymes, which produce energy molecules, exchange gases, and breakdown down food substances.
Thus, enzyme-catalyzed reactions like Kreb's cycle, photosynthesis, respiration, and oxidative phosphorylation are important for the survival of an organism.
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