1. Enzymes are catalysts.

2. (a)
(i) Describe what is meant by the term "catalyst." [2]

(ii) Enzymes are proteins. State the names of the chemical elements found in all proteins. [2]



Answer :

Final answer:

Enzymes are specialized proteins that act as biological catalysts, speeding up reactions by lowering activation energy.


Explanation:

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. Enzymes are specialized proteins that act as biological catalysts, speeding up reactions by lowering activation energy. They achieve this by binding temporarily to reactants, called substrates, and providing an optimal environment for the reaction to occur.


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