The optimum pH for the functioning of pancreatic lipase is _.
Correct answer: B. 9
- A. 8
- B. 9
- C. 7
- D. 6
Explanation
B is correct because In vitro, pancreatic lipase exhibits the maximum activity at pH 7.5-8.5 (Borgstrom et al., 1957), whereas in vivo, it has been reported that bile salts shift the pH optimum to slightly acid values (pH 6.5) that actually prevail in the upper intestine
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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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