Subject: Chemistry
Book: General Chemistry
Enzymes are protein catalysts that dramatically speed up biological reactions by lowering activation energy. They exhibit high specificity, binding substrates at active sites and forming enzyme-substrate complexes. Models like “lock-and-key” or “induced fit” describe enzyme action. Factors such as pH, temperature, and inhibitors affect enzyme activity. Enzyme kinetics and regulation are foundational in biochemistry, medicine, and biotechnology.
Which element is represented by the symbol 'Pb'?
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