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Multiple Choice
In the context of cell signaling and reflex arcs, which component is primarily responsible for determining the response to a stimulus?
A
Effector
B
Integration center
C
Sensory receptor
D
Motor neuron
Verified step by step guidance
1
Step 1: Understand the components involved in cell signaling and reflex arcs. Reflex arcs are neural pathways that control reflex actions. The main components include sensory receptors, sensory neurons, integration centers, motor neurons, and effectors.
Step 2: Define the role of each component. Sensory receptors detect the stimulus and convert it into a neural signal. Sensory neurons transmit this signal to the integration center. The integration center processes the information and determines the appropriate response. Motor neurons carry the response signal to the effector, which executes the response.
Step 3: Focus on the integration center. The integration center, typically located in the central nervous system (CNS), is responsible for analyzing the incoming sensory information and deciding the appropriate response. This decision-making process is crucial for determining the outcome of the reflex arc.
Step 4: Compare the roles of the other components. While sensory receptors detect the stimulus, motor neurons and effectors are involved in executing the response. However, they do not determine the response itself; this is the role of the integration center.
Step 5: Conclude that the integration center is the component primarily responsible for determining the response to a stimulus in the context of cell signaling and reflex arcs.