The Best Description of the Induced Fit Model of Enzyme

question 53

Multiple Choice

The best description of the induced fit model of enzyme function is

• A) a non substrate molecule must first bind to the active site, allowing the substrate to fit properly.
• B) a molecule not directly involved in the catalysis interacts with a site on the protein far from the active site, changing the shape of the active site to make it work.
• C) the active site, the substrate, or both change shape upon binding so that the activation energy of the desired change is decreased.
• D) the active site has a definite, rigid shape that only fits one substrate molecule.
• E) a short protein chain that blocks access to the active site is chemically removed as the substrate approaches.

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Definitions:

Early Earth

The period in Earth's history just after its formation, characterized by extreme conditions and the gradual development of the planet's atmosphere and oceans.

Modern Earth

Modern Earth refers to the current geological and biological age of Earth, encompassing the present-day conditions and the life forms that inhabit it.

Isotope

Variants of a particular chemical element which differ in neutron number, and consequently in nucleon number, but not in proton number.