Enzymes act as what in organisms?

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Multiple Choice

Enzymes act as what in organisms?

Enzymes act as biological catalysts that speed up biochemical reactions in organisms by lowering the activation energy required for those reactions to proceed. They do this by binding substrates at an active site, forming an enzyme–substrate complex, and stabilizing the transition state, which makes the energy barrier easier to overcome. This allows reactions to occur more rapidly without the cell needing to supply extra energy. Enzymes are highly specific for their substrates and are often regulated by factors like temperature, pH, and inhibitors. They are not consumed in the reaction and can be reused. They do not store genetic information—that job belongs to DNA or RNA—and they do not directly regulate osmotic balance, though the metabolic pathways they control can influence cellular conditions.

Enzymes act as biological catalysts that speed up biochemical reactions in organisms by lowering the activation energy required for those reactions to proceed. They do this by binding substrates at an active site, forming an enzyme–substrate complex, and stabilizing the transition state, which makes the energy barrier easier to overcome. This allows reactions to occur more rapidly without the cell needing to supply extra energy. Enzymes are highly specific for their substrates and are often regulated by factors like temperature, pH, and inhibitors. They are not consumed in the reaction and can be reused. They do not store genetic information—that job belongs to DNA or RNA—and they do not directly regulate osmotic balance, though the metabolic pathways they control can influence cellular conditions.

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