Which of these enzymes work best at a pH of 2.00?
Correct answer: C. Pepsin
- A. Sucrase
- B. Salivary enzymes
- C. Pepsin
- D. Enterokinase
Explanation
Pepsin is the enzyme that works best at a pH of 2.00. Pepsin is a digestive enzyme that is secreted by the stomach to help break down proteins in the acidic environment of the stomach. The low pH in the stomach (around 1.5 to 2.5) is optimal for pepsin's activity. It's worth noting that pepsin functions effectively under highly acidic conditions.
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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