True or False: In hormone systems, negative feedback occurs when ...

Question

True or False: In hormone systems, negative feedback occurs when the presence of a hormone inhibits release of the hormone.

Accepted Answer

Hi everyone, here's our next question. Which of the following statements about negative feedback and hormone systems is true. Well, negative feedback is a way of regulating a system to prevent conditions from becoming too extreme by high amounts of a hormone causing problems. So a negative feedback high amounts of hormone prevent it's further release and that keeps it from getting out of control. And just more and more of that hormone being produced since hormones have significant effects on the body. So high levels of hormones can have a bad result. So let's look through our answer choices and see which matches this. In this case, Choice A says rising levels of a hormone promote its further release. Well that doesn't describe what we want. We wouldn't want rising levels to promote for more of the hormone or that's just going to cause, you know, increasing amounts. So Choice A. Is not correct. We see that we do have an option and choice D for all of the above. And we can now rule that out. Since we know we have an incorrect choice here, Choice B says lower levels of A hormone inhibits further release. Well, again, you want to normalize the situation. So inhibiting release when levels drop low is not describing correctly are negative feedback loop. So Choice B. Is not our answer. So we left the choice C. Which has rising levels of hormone inhibits further release. And as we saw that is what we're looking for as a negative feedback loop. So for negative feedback, which statement is true. Choice? See rising levels of hormone inhibit its further release. If we want an example of this, you'd have the case of the thyroid hormone, um when levels of the thyroid hormones, T. Three and T four begin to rise. That causes the hypothalamus to stop releasing tRH, the thyroid regulating hormone and that prevents the release of TSH thyroid stimulating hormone by the pituitary, which is what causes the release of thyroid hormones. So that's an example of one of those negative feedbacks systems. See you in the next video.

True or False: In hormone systems, negative feedback occurs when the presence of a hormone inhibits release of the hormone.

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