Which of the Following Statements Concerning Enzyme Active Sites Is

question 1

Multiple Choice

Which of the following statements concerning enzyme active sites is incorrect?

• A) They generally involve only a small portion of the enzyme.
• B) Noncompetitive inhibitors can change active site shape.
• C) The lock-and-key model of enzyme activity assumes that an active site has a fixed, rigid geometrical conformation.
• D) More than one correct response.
• E) No correct response.

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Definitions:

Microtubules

Hollow, cylindrical fibers consisting of tubulin protein subunits; major components of the cytoskeleton and found in mitotic spindles, cilia, flagella, centrioles, and basal bodies.

ATP

Adenosine triphosphate, an organic compound that provides energy to drive many processes in living cells.

Eukaryotic Flagellum

Eukaryotic Flagellum refers to a lash-like appendage that protrudes from the cell body of certain eukaryotic cells, used primarily for locomotion.

Surface Area

The total extent of the outer layer or covering of an object, often related to the rate of processes like absorption and evaporation.