Why do biological systems need enzymes?

Answer 1

Enzymes help speed up, or catalyze, reactions that would otherwise take so long it would be an inefficient use of energy. Enzymes are proteins that can orient molecules certain ways such that the activation energy is much lower than it originally was.

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Answer 2

Axel Alvarado

Biological systems need enzymes because they are catalysts that speed up biochemical reactions without being consumed in the process. Enzymes lower the activation energy required for reactions, allowing them to occur at physiological temperatures and conditions. This facilitates essential processes such as metabolism, digestion, DNA replication, and protein synthesis. Enzymes help regulate and control cellular functions, enabling organisms to efficiently utilize energy and maintain homeostasis.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.