Quick 10Q: Enzymes

Front

Where does a substrate bind to an enzyme?

Back

Active site

Front

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

Back

30 kJ/mol

Front

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

Back

Decrease in reaction rate

Front

What is the 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

Decrease in Tryptophan concentration

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

What is the role of the active site in an enzyme?

Back

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

Front

What is enzyme denaturation?

Back

Denaturation is the process where an enzyme loses its functional shape, rendering it inactive.

Front

How do temperature and pH affect enzyme activity?

Back

Enzymes have optimal temperature and pH ranges; deviations can reduce activity or denature the enzyme.

Front

What is the difference between competitive and non-competitive inhibition?

Back

Competitive inhibition occurs when an inhibitor competes with the substrate for the active site; non-competitive inhibition occurs when an inhibitor binds to a different site, altering enzyme function.