AP Biology Unit 3 Enzymes

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

• 0 kJ/mol

• 15 kJ/mol

• 30 kJ/mol

• 60 kJ/mol

What is the function of an enzyme?

• To speed up a chemical reaction

• To provide additional energy

• To inhibit a cellular process

• To increase absorption of a molecule

Which of the following would NOT denature an enzyme?

• HIGH temperature

• LOW pH

• HIGH pH

• LOW temperature

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

• No change in the reaction rate

• Increase in reaction rate

• Decrease in reaction rate

• Decrease then increase in reaction rate

Tags

NGSS.HS-PS1-5

Which of the following is NOT a way that enzymes speed up chemical reactions?

• Strain bonds in the structure

• Orient reacting molecules

• Provide favorable environment

• Increase required energy of activation

Tags

NGSS.HS-LS1-7

An enzyme can make an endergonic reaction into an exergonic reaction.

• True

• False

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

Where does a substrate bind to an enzyme?

• Active site

• Allosteric site

How does a noncompetitive inhibitor decrease reaction rates?

• Binds to the active site

• Binds to the allosteric site

• Increases the free energy

• Increases the substrate concentration

Tags

NGSS.HS-PS1-5

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