A Noncompetitive Inhibitor

question 52

Multiple Choice

A noncompetitive inhibitor

• A)binds at the active site of the enzyme.
• B)alters the three-dimensional structure of the enzyme.
• C)has its effect reversed by adding more substrate.
• D)has a structure similar to the substrate.
• E)increases the rate of the enzyme-catalyzed reaction.

---

Definitions:

Diatoms

A major group of algae, specifically microalgae, characterized by their unique cell walls composed of silica.

Unicellular Alga

A single-celled microorganism in the algae family, which conducts photosynthesis and lives in aquatic environments.

Whirls

Circular or spiraling patterns or movements.

Euglenoid

Refers to single-celled organisms within the kingdom Protista, characterized by their ability to be both autotrophic and heterotrophic.