Quick 10Q: Enzymes

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?

• 0 kJ/mol

• 15 kJ/mol

• 30 kJ/mol

• 60 kJ/mol

Tags

NGSS.HS-PS1-4

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

Tags

NGSS.HS-PS1-5

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 to the reaction rate

• increase in reaction rate

• decrease in reaction rate

• decrease then increase reaction rate

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-PS1-4

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

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

Tags

NGSS.HS-LS1-6