Lock and Key model was explained by:
Correct answer: B. Emil Fischer
- A. Koshland
- B. Emil Fischer
- C. De Duve
- D. Golgi
Explanation
The lock and Key model was given by Emil Fischer in 1890.According to this model, the active site is a rigid structure. As one specific key can open only a single lock, in the same way, a specific enzyme can transform a specific substrate into the product(s).Example: Urease is the enzyme that follows this model. This model explains the specificity of enzyme action.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Enzymes
633 free Enzymes MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Enzymes questions
Enzymes have what effect on the end-product?
Coenzymes are derived from:
The view that active site of an enzyme is flexible and when a substrate combines with it, cause changes in enzyme structure is known as:
Name the inhibitors which can be neutralized by adding more substrate:
The optimum pH of enzyme urease is
Which of the following reacts with an enzyme at site other than the active site?