A Protein Kinase Cascade Can Amplify an Intracellular Signal by

question 207

Multiple Choice

A protein kinase cascade can amplify an intracellular signal by

• A) opening gap junctions to allow diffusion of signals from neighboring cells.
• B) activating a G protein, which then binds and activates a second protein, amplifying the signal.
• C) using nitric oxide to quickly diffuse into cells, amplifying the response.
• D) using transcription factors to increase gene expression.
• E) activating one kinase molecule that can then trigger the activation of many proteins.

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Definitions:

Fechner's Law

A principle describing the logarithmic relationship between the intensity of a stimulus and the sensation it produces, highlighting a stronger sensation increase from lower to moderate intensities compared to higher ones.

Strength Of Sensation

The intensity with which a sensory input is felt or experienced by an individual.

Psychological Intensity

The degree of strength or force of psychological phenomena, such as emotions, motivations, or experiences.

Stimulus Intensity

The magnitude or strength of a stimulus, which can influence the reaction or response it elicits.