Question

Which of the following statements about enzymes is true?

• A. Enzymes are consumed in the reactions they catalyze.
• B. Enzymes increase the activation energy of a reaction.
• C. Enzymes are specific to their substrates.
• D. Enzymes work best at any temperature.

Hint:

Enzymes are highly specific to their substrates, which allows them to catalyze only particular reactions in biological systems.

Answer 1

The Correct Option is C

Enzymes are proteins that function as biological catalysts, speeding up chemical reactions by lowering the activation energy required for the reaction to proceed. Each enzyme is highly specific to its substrate (the molecule it acts upon), and this specificity is determined by the enzyme's unique active site. Enzymes are not consumed in the reactions they catalyze and can be used repeatedly. Additionally, enzymes have an optimal temperature and pH at which they work most efficiently. Thus, the statement that enzymes are specific to their substrates is correct.