Multiple Choice
Which of the following are types of locally-acting hormones called eicosanoids?
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10. Cell Signaling
Introduction to Cell Signaling
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Which of the following best describes rapidly adapting receptors in cell signaling?
A
They maintain a constant response as long as the stimulus is present.
B
They only respond to chemical signals and not to physical stimuli.
C
They respond quickly to a stimulus but stop firing if the stimulus remains constant.
D
They are responsible for amplifying intracellular second messengers.
Verified step by step guidance1
Understand the concept of rapidly adapting receptors: These are sensory receptors that respond quickly to a stimulus but decrease their response if the stimulus remains constant over time. This is also known as 'phasic' behavior.
Eliminate incorrect options: Analyze each option to determine if it aligns with the behavior of rapidly adapting receptors. For example, maintaining a constant response as long as the stimulus is present describes 'tonic' receptors, not rapidly adapting ones.
Focus on the correct characteristic: Rapidly adapting receptors are designed to detect changes in stimuli, such as the onset or offset of a stimulus, rather than maintaining a prolonged response.
Clarify the role of these receptors: They are not limited to chemical signals or physical stimuli exclusively, and their primary function is not to amplify intracellular second messengers.
Select the correct answer: Based on the explanation, the correct description is 'They respond quickly to a stimulus but stop firing if the stimulus remains constant.'
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