Which Statement Best Describes How an Enzyme Lowers the Activation

question 69

Multiple Choice

Which statement best describes how an enzyme lowers the activation energy of a reaction?

• A) The enzyme covalently binds to the substrate, lowering its energy.
• B) The enzyme chemically reacts with the substrate to make it more reactive.
• C) The enzyme increases the temperature of the substrate, making it more reactive.
• D) The substrate is held in the correct orientation for reaction to occur.
• E) All of the above

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.

Psychophysical Threshold

The minimum level of stimulus intensity needed for detection by sensory systems.

Subliminal Stimuli

Stimuli that are below the threshold of conscious perception, often used in reference to messages that are not consciously detected but can impact behavior.

Selective Perceptions

The cognitive process by which individuals focus attention on particular elements of their environment while ignoring others.