The sensor, controller, and effector functions operate collectively to provide an architecture for a feedback loop to move the system closer to the standard of reference. True False
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Step 1: The sensor, controller, and effector functions are the three main components of a feedback loop. Show more…
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Integrating center (Compare to set point) Afferent pathway Efferent pathway Receptor Effector Begin Stimulus Response Negative feedback Figure 1.7 General components of a reflex arc that functions as a negative feedback control system. The response of the system has the effect of counteracting or eliminating the stimulus. This phenomenon of negative feedback is emphasized by the minus sign in the dashed feedback loop. The pathway mediating a reflex is known as the reflex arc, and its components are shown in Figure 1.7. A stimulus is defined as a detectable change in the internal or external
Sri K.
In a negative feedback system, an organ or tissue that most directly corrects a change from a set-point is called An effector A sensor A control center A stimulus Question 8 With a negative feedback system, the value in question will vary around the set point. True False Question 9 With a positive feedback system, the value in question will vary around the set point. True False
Increased body temperature, which causes you to sweat, thereby cooling your body temperature, is an example of negative feedback. a. True b. False 2. The biosphere is a natural Earth system maintained by things like plants and animals. a. True b. False 3. Which of the following is TRUE about systems? a. Inputs flow through processes to create outputs. b. A natural system can reach its ecological tipping point if it gets caught in a negative feedback loop. c. Positive feedbacks work to maintain stability in systems. d. Outputs cannot be converted into inputs. 4. Consider the following scenario: When vegetation is removed from a stream valley, flowing water from precipitation causes soil erosion and loss of nutrients. This causes more vegetation to die. With less vegetation to hold soil in place, flowing water causes even more erosion and nutrient loss, which then causes more plants to die. This is an example of a ________ feedback. a. negative b. natural system c. runaway d. positive
Adi S.
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