Ch 4 Enzymes
Authored by Alex Ly
Science
12th Grade
Used 2+ times
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49 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are enzymes?
Carbohydrates that slow down reactions
Proteins that accelerate reactions
Lipids that store energy
Nucleic acids that carry genetic information.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzymes can accelerate the rate of a reaction by factors of as much as a ______ or more.
hundred
thousand
million
billion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme has the highest rate enhancement according to the table?
OMP decarboxylase
Staphylococcal nuclease
Carboxypeptidase A
Carbonic anhydrase
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The hydration of CO2 by carbonic anhydrase accelerates the reaction by how many fold? Fill in the blank: The reaction is accelerated by ______ fold.
1 million
5 million
10 million
15 million
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a reason why enzymes have higher reaction rates compared to most chemical catalysts?
They work at extreme temperatures
They are proteins
They have orders of magnitude better reaction rates
They cannot be regulated
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzymes work under milder reaction conditions. They operate at physiological pH and ______.
high pressure
low temperature
high temperature
physiological temperature
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzymes have greater reaction specificity. This means they are specific in terms of reactants and ______.
temperature
pressure
products
pH
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