For an Enzyme to Effectively Change Its Activity in Response

question 56

Multiple Choice

For an enzyme to effectively change its activity in response to a change in substrate concentration, it is MOST favorable for:

• A) K_m to be less than cellular substrate concentrations.
• B) K_m to be equal to cellular substrate concentrations.
• C) K_m to be greater than cellular substrate concentrations.
• D) V_max to be at the diffusion limit.
• E) the substrate to also be an allosteric effector.

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Definitions:

Secondary Appraisal

The process of evaluating one's ability to cope or manage the consequences of a potentially stressful event after initially assessing its significance.

Lazarus

Refers to the psychologist Richard Lazarus, known for his theory on emotion and stress which emphasizes the importance of cognitive appraisal.

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An individual's capacity to form satisfying interpersonal relationships with others and to adapt comfortably to different social situations.

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A physiological response to perceived danger or threat, preparing the body to fight or flee from the threatening situation.