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1.The class of enzyme that catalyzes addition of a group to a double bond is? oxidoreductases lyases ligases isomerases hydrolases transferases     2. Suppose an enzyme and its substrate obey the lock and key model of enzyme catalysis. Which of the following would be true of the enzyme? the active site of the enzyme must be rigid the active site of the enzyme must be flexible only one substrate could be converted to product by the enzyme the enzyme could bind different substrates if the substrates shared a common motif somewhere in their structures the entire enzyme must be rigid   3. Which of the following enzymes is found in blood serum and is diagnostic of prostate cancer if enzyme levels are elevated? alanine aminotransferase phosphohexose isomerase lactate dehydrogenase acid phosphatase alkaline phosphatase

1.The class of enzyme that catalyzes addition of a group to a double bond is? oxidoreductases lyases ligases isomerases hydrolases transferases     2. Suppose an enzyme and its substrate obey the lock and key model of enzyme catalysis. Which of the following would be true of the enzyme? the active site of the enzyme must be rigid the active site of the enzyme must be flexible only one substrate could be converted to product by the enzyme the enzyme could bind different substrates if the substrates shared a common motif somewhere in their structures the entire enzyme must be rigid   3. Which of the following enzymes is found in blood serum and is diagnostic of prostate cancer if enzyme levels are elevated? alanine aminotransferase phosphohexose isomerase lactate dehydrogenase acid phosphatase alkaline phosphatase

Biochemistry
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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1.The class of enzyme that catalyzes addition of a group to a double bond is?

oxidoreductases
lyases
ligases
isomerases
hydrolases
transferases
 
 
2.
Suppose an enzyme and its substrate obey the lock and key model of enzyme catalysis. Which of the following would be true of the enzyme?


the active site of the enzyme must be rigid
the active site of the enzyme must be flexible
only one substrate could be converted to product by the enzyme
the enzyme could bind different substrates if the substrates shared a common motif somewhere in their structures
the entire enzyme must be rigid
 
3.
Which of the following enzymes is found in blood serum and is diagnostic of prostate cancer if enzyme levels are elevated?

alanine aminotransferase
phosphohexose isomerase
lactate dehydrogenase
acid phosphatase
alkaline phosphatase
 
4.
A blood test returns elevated aspartate aminotransferase levels. You suspect that the patient has suffered a heart attack. What other serum enzyme level of the ones listed should be tested to confirm the diagnosis?

acid phosphatase
lysozyme
amylase
alkaline phosphatase
creatine kinase
 
5.
A blood test returns elevated acid phosphatase levels. What disease(s) is indicated by this test result?

mumps
bone disease
prostate cancer
heart attack
hepatitis
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