A number of different kinds of signals are responsible for the coordination and regulation of systems in humans - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Question 6
A number of different kinds of signals are responsible for the coordination and regulation of systems in humans.
Consider the following model of one of these system... show full transcript
Worked Solution & Example Answer:A number of different kinds of signals are responsible for the coordination and regulation of systems in humans - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Step 1
For each point, name the kind of signalling molecule that would act and the kind of cell that produced the signalling molecule.
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Answer
Point
Signalling Molecule
Type of Cell Producing the Molecule
R
Neurotransmitter
Neuron
S
Hormone
Endocrine Cell
Step 2
Explain why such an arrangement is beneficial to a control system.
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Answer
In a complex nervous control system, having a large network of cells allows for enhanced communication and coordination of actions. 1. Redundancy: If some cells fail to transmit signals, others can still carry out the desired function.
Inhibition and Stimulation: The ability of some signals to inhibit while others promote action helps in fine-tuning responses, ensuring that the system can maintain homeostasis effectively.
Diverse Responses: This interconnectedness enables the organism to respond differently to stimuli, allowing for adaptive behaviors.
Feedback Mechanisms: Inhibition and stimulation can create feedback loops, further enhancing the control mechanism by ensuring responses are adjusted based on the physiological state.