JEE Main 2004 Chemistry question

Identify the correct statements regarding enzymes

(1)Enzymes are specific biological catalysts that can normally function at very high temperature
(2)Enzymes are specific biological catalysts that posses well - defined active sitesCorrect
(3)Enzymes are specific biological catalysts that can not be poisoned
(4)Enzymes are normally heterogeneous catalysts that are very specific in their action

Answer: (2)

Solution

Enzymes are protein catalysts with well-defined active sites where substrates bind (lock-and-key), giving high specificity, option (2). They are denatured at high temperatures

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Question ID VK-038433