dik
Not sure what they mean by that but...
A good example of a positive feedback loop is the increased production of insulin by our pancreas. After a meal we may have heightened blood sugar levels. The endocrine system triggers insulin production in the pancreas to counteract this rise and return our blood sugar levels back to normal. Once normality has been reached the endocrine system signals our pancreas to cease the production and release of insulin.
Actually, that is an example of a negative feedback loop. Negative feedback loops negate an action, while positive feedback loops encourage it. An example of a Positive feedback loop is childbirth, the body increases the amount of oxytocin in the blood to encourage contractions in order to birth the baby.
The ADH feedback loop is an example of a negative feedback loop. Negative feedback loops occur when the output of a system acts to oppose the changes to the input of the system. This is the case with ADH because when there is not enough water, the hypothalamus and pituitary gland work to release ADH so that the body can retain more water.
Negative feedback is a feedback where it is used in negative side in a closed loop system.Such as a inverting side feedback in op-amp.
The ADH feedback loop is an example of a negative feedback loop. Negative feedback loops occur when the output of a system acts to oppose the changes to the input of the system. This is the case with ADH because when there is not enough water, the hypothalamus and pituitary gland work to release ADH so that the body can retain more water.
You must give "which of the following" for us to answer your question.
A negative feedback loop works to counteract changes in a variable, promoting stability within a system. When an initial change occurs, the negative feedback mechanism detects this deviation and triggers responses that reduce or negate the change. For example, if a body temperature rises, mechanisms like sweating are activated to lower it back to the set point. Thus, the negative feedback loop effectively dampens the initial change, restoring equilibrium.
Negative Feedback: Enzyme A makes Substance A when Substance A is not available in the Diet. When Substance A becomes available in the Diet, Enzyme A is no longer required and The Negative Feedback loop shuts down the production of Enzyme A.
A: DEFINITELY NOT Open loop is defined as no feedback. any kind of negative feedback will reduce the gain
in negative feedback. when an enzyme (negative feed back mechanism) produces too much of a molecule or substance that substance binds to the enzymes allosteric site to hault production of that substance (negative feedback response). and the whole process is the negative feedback loop.
- temperature - negative feedback loop - positive feedback loop - water balance
A: It does not. The loop becomes unstable ONLY if there is positive feedback either voltage or phase. For a close loop to be stable negative feedback is required.
sensor, intergrator and effector
body temp