One molecule of carbonic anhydrase can hydrate up to a million molecules of carbon dioxide every second. This demonstrates the enzyme's
Correct answer: C. very high turnover number
- A. instability at body temperature
- B. gradual consumption during the reaction
- C. very high turnover number
- D. resistance to all inhibitors
Explanation
The turnover number is how many substrate molecules one enzyme molecule converts per second, and carbonic anhydrase has one of the highest known. The enzyme itself is unchanged and reused, so the huge rate reflects catalytic power, not consumption.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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 Characteristics of Enzymes questions
The ending most commonly used when naming an enzyme is
Ribozymes are unusual biological catalysts because they are
The protein part of a conjugated enzyme, which on its own is catalytically inactive, is called the
Enzymes that catalyse the splitting of bonds with the addition of water belong to the class called
Which statement about enzymes as biological catalysts is correct?
Storing food in a refrigerator slows its decay mainly because low temperature