Why would it be wrong to interchange the roles of sensory nerve and motor nerve in a reflex arc?
Answer and explanation
Correct answer: Because the sensory nerve carries the message inward and the motor nerve carries the command outward
The governing concept is directional information flow in a reflex arc. A sensory or afferent nerve carries impulses from a receptor toward the central nervous system, where the information is processed. A motor or efferent nerve then carries the command from the central nervous system to an effector such as a muscle. Reversing their roles would send information in the wrong direction and prevent the correct reflex response. Thus, option A is correct.
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What is the correct answer to this question?
Because the sensory nerve carries the message inward and the motor nerve carries the command outward
Why is this the correct answer?
The governing concept is directional information flow in a reflex arc. A sensory or afferent nerve carries impulses from a receptor toward the central nervous system, where the information is processed. A motor or efferent nerve then carries the command from the central nervous system to an effector such as a muscle. Reversing their roles would send information in the wrong direction and prevent the correct reflex response. Thus, option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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