Which of the Following Statements Is True About Enzyme- Catalyzed

question 50

Multiple Choice

Which of the following statements is true about enzyme- catalyzed reactions?

• A) Enzyme- catalyzed reactions release more free energy than noncatalyzed reactions.
• B) An enzyme catalyzes a reaction by raising the activation energy.
• C) The reaction is faster than the same reaction in the absence of the enzyme.
• D) Enzyme- catalyzed reactions require energy to activate the enzyme.
• E) The free- energy change of the reaction is opposite from the reaction that occurs in the absence of the enzyme.

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Definitions:

Double-masked Design

A study design in which neither the participants nor the researchers know who belongs to the control group and who belongs to the experimental group, minimizing bias.

Experimenter Expectancies

The potential influence that a researcher's beliefs, hopes, or biases can have on the outcome of an experiment, often impacting the behavior being studied.

Rosenthal Effect

The phenomenon in which the higher expectations placed upon individuals either by themselves or others lead to better performance; also known as the Pygmalion effect.

Quasi-experimental Designs

Research methods that aim to evaluate interventions without using random assignment, often by comparing groups that naturally exist.