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What is the correct sequence in a reflex arc? A - OCR Gateway - GCSE Biology - Question 11 - 2023 - Paper 3
Question 11
What is the correct sequence in a reflex arc? A. Effector → receptor → sensory neurone → relay neurone → motor neurone B. Motor neurone → sensory neurone → relay n... show full transcript
Worked Solution & Example Answer:What is the correct sequence in a reflex arc? A - OCR Gateway - GCSE Biology - Question 11 - 2023 - Paper 3
Step 1
Identify the correct sequence in a reflex arc.
Answer
In a reflex arc, the correct sequence of elements is crucial for understanding how reflex actions occur. The sequence begins with the receptor, which detects a stimulus. Next, the sensory neurone transmits the signal to the relay neurone within the spinal cord, which processes the information. The motor neurone then carries the response signal to the effector, which carries out the action. Therefore, the correct sequence is:
Receptor → Sensory Neurone → Relay Neurone → Motor Neurone → Effector.
Step 2