The diagram below has two parts - VCE - SSCE Biology - Question 6 - 2009 - Paper 1
Question 6
The diagram below has two parts.
Part X – shows a high-speed golf ball approaching an eye and part of the pathway of an automatic blinking response.
Part Y – compri... show full transcript
Worked Solution & Example Answer:The diagram below has two parts - VCE - SSCE Biology - Question 6 - 2009 - Paper 1
Step 1
Select the two most appropriate words from the list given in part Y and complete the labels 1 and 2 in the spaces provided on the diagram.
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Answer
Receptor: This is the component that detects the stimulus of the approaching golf ball.
Efferent (motor) neurone: This neurone transmits the impulse away from the integration center (the brain) to the effector, which in this case would be the eyelid muscles to initiate the blink.
Step 2
What is the general name for molecule X?
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Answer
The general name for molecule X is neurotransmitter. This molecule facilitates communication between neurons at the synapse.