Quick 10Q: Enzymes

Front

The delta G of a catalyzed reaction is 30 kJ/mol. If you double the reaction, what would be delta G of the catalyzed reaction?

Back

30 kJ/mol

Front

What is the function of an enzyme?

Back

To speed up a chemical reaction

Front

Which of the following would NOT denature an enzyme?

HIGH temperature

,

LOW pH

,

HIGH pH

,

LOW temperature

Back

LOW temperature

Front

What happens to the reaction rate if an enzyme is denatured or nonfunctional?

Back

decrease in reaction rate

Front

Which of the following is NOT a way that enzymes speed up chemical reactions? Options: strain bonds in the structure, orient reacting molecules, provide favorable environment, increase required energy of activation

Back

increase required energy of activation

Front

Can an enzyme make an endergonic reaction into an exergonic reaction?

Back

False

Front

Which of the following is a way to overcome competitive inhibition of an enzyme?

• increase product concentration
• increase substrate concentration
• decrease enzyme concentration
• decrease environmental temperature

Back

increase substrate concentration

Front

Where does a substrate bind to an enzyme?

Back

active site

Front

How does a noncompetitive inhibitor decrease reaction rates?

Back

binds to the allosteric site

Front

The decreased production of enzyme Trp-T would have which of the following responses?

• decrease in Tryptophan concentration
• increase in I3PA concentration
• increase in IAA concentration
• decrease in I3PA & IAA concentration

Back

decrease in I3PA & IAA concentration