Quick 10Q: Enzymes

Front

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

Back

The reaction rate decreases.

Front

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

Back

Enzymes do not increase the required energy of activation.

Front

What is the delta G of a catalyzed reaction if it is 30 kJ/mol?

Back

The delta G remains 30 kJ/mol regardless of the reaction rate.

Front

What is the primary function of an enzyme?

Back

To speed up a chemical reaction.

Front

What is the effect of decreased production of enzyme Trp-T on Tryptophan concentration?

Back

It leads to a decrease in I3PA and IAA concentration.

Front

Define enzyme denaturation.

Back

Enzyme denaturation is the process where an enzyme loses its functional shape due to external stress, affecting its activity.

Front

What role do enzymes play in lowering activation energy?

Back

Enzymes provide an alternative reaction pathway with a lower activation energy.

Front

What is the active site of an enzyme?

Back

The active site is the region on the enzyme where substrate molecules bind and undergo a chemical reaction.

Front

How do enzymes affect the equilibrium of a reaction?

Back

Enzymes do not affect the equilibrium; they only speed up the rate at which equilibrium is reached.

Front

What is a substrate in the context of enzyme activity?

Back

A substrate is the reactant molecule upon which an enzyme acts.