O Macmillan Learning 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 Ribonuclease Substrate RNA Turnover number (per second) 100 fumarate 800 Lactate dehydrogenase lactate 1000 Urease 10,000 Fumarase urea How many molecules of urea can one molecule of urease act on in 25.3 min? urea molecules:
O Macmillan Learning 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 Ribonuclease Substrate RNA Turnover number (per second) 100 fumarate 800 Lactate dehydrogenase lactate 1000 Urease 10,000 Fumarase urea How many molecules of urea can one molecule of urease act on in 25.3 min? urea molecules:
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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![O Macmillan Learning
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
Ribonuclease
Substrate
RNA
Turnover number (per second)
100
fumarate
800
Lactate dehydrogenase
lactate
1000
Urease
10,000
Fumarase
urea
How many molecules of urea can one molecule of urease act on in 25.3 min?
urea molecules:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff57d3743-5e44-4060-83da-5d90a37d31c6%2F89d4a331-307e-4e10-b19e-dd5edd03943a%2Fvvg4f1t_processed.png&w=3840&q=75)
Transcribed Image Text:O Macmillan Learning
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
Ribonuclease
Substrate
RNA
Turnover number (per second)
100
fumarate
800
Lactate dehydrogenase
lactate
1000
Urease
10,000
Fumarase
urea
How many molecules of urea can one molecule of urease act on in 25.3 min?
urea molecules:
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