How many molecules of urea can one molecule of urease act on in 12.0 min ?
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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One way of expressing the rate at which an enzyme can catalyze a reaction is to state its turnover number. The turnover number is the maximum number of substrate molecules that can be acted on by one molecule of enzyme per unit of time. The table gives the turnover number of four representative enzymes.
| Enzyme | Substrate | Turnover number (per second) |
|---|---|---|
| Ribonuclease | RNA | 100 |
| Fumarase | fumarate | 800 |
| Lactate dehydrogenase | lactate | 1000 |
| Urease | urea | 10,000 |
How many molecules of urea can one molecule of urease act on in 12.0 min ?
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