SQA National 5 Chemistry Practice Exam

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What is the main outcome of enzymatic action?

Inhibition of biological reactions

Conversion of energy into heat

Acceleration of chemical reactions in organisms

The main outcome of enzymatic action is the acceleration of chemical reactions in organisms. Enzymes are biological catalysts that facilitate and speed up chemical reactions without being consumed in the process. They lower the activation energy required for reactions, allowing metabolic processes to occur more efficiently and at much lower temperatures than would otherwise be possible. This is crucial for sustaining life, as many biochemical reactions would be too slow to support the necessary cellular functions if catalysis did not take place.

In various biological systems, enzymes enable reactions such as digestion, metabolism, and DNA replication to occur at rates that allow organisms to function effectively. This acceleration is essential for maintaining homeostasis and the overall health of an organism.

SQA National 5 Chemistry Practice Exam

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