Describe the components and functions of a homeostatic system and relate negative feedback. What will be an ideal response?
ANSWER: Components of a homeostatic system include the sensor, which monitors the magnitude of
the variable being controlled; the integrator or control center which compares the sensor's
input with what is considered a normal value (set point). The integrator then sends
appropriate signals to the last component of the system, the effector. The effector in turn
brings about an appropriate change to return the system back to the normal set point.
Negative feedback is a process that restores a factor to normal by moving the factor in the
opposite direction of the initial change. Negative feedback is the basis for homeostasis.
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