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The four components of a negative feedback loop are the stimulus_ the sensor; the control center; and the effector: Tell the role of cach component in the negative ...

Question

The four components of a negative feedback loop are the stimulus_ the sensor; the control center; and the effector: Tell the role of cach component in the negative feedback loop.Draw negative feedback loop showing the relationship between cach component of the loop.Explain what would happen if secretion of a body chemical controlled by negative feedback system became too great:Tell which two human body ' organ systems are responsible for homeostatic control.Explain the reason maintenance of

The four components of a negative feedback loop are the stimulus_ the sensor; the control center; and the effector: Tell the role of cach component in the negative feedback loop. Draw negative feedback loop showing the relationship between cach component of the loop. Explain what would happen if secretion of a body chemical controlled by negative feedback system became too great: Tell which two human body ' organ systems are responsible for homeostatic control. Explain the reason maintenance of homeostasis is essential for living organisms. Explain the reason positive feedback mechanisms, while useful, are NOT homeostatic.



Answers

Identify the four components of a negative feedback loop and explain what would happen if secretion of a body chemical controlled by a negative feedback system became too great.

So today we're going to be talking about different types of feedback loops that govern over the different processes within your body. So you have negative feedback loops, and you have positive feedback loops. So in negative feedback loops, thes heir to maintain what we like to call dynamic equilibrium to make sure that the body doesn't get too much of anything. So not too hot, not too cold, not too many of this chemical and not too little of this chemical. So we do this by having different processes that kick in, um, to maintain this dynamic equilibrium anytime your bodies out of black, Um, we're going through something that necessarily is not what it should be going through. Positive feedback loops, on the other hand, usually are when one thing happens in the body that stimulates other things to happen, and so they keep happening until you have a final result. A good example of this is like giving birth. The contractions activate more contractions, which accurate more contractions and only stop one's. A final product, a baby is born is reached, so these are, ah, stimulation that causes more stimulation, which is why it's called a positive feedback. So if we look at these answer choices, we have to find which one is a positive feedback. If we look at them, we can see that A, B and C are all instances when the body wants to change something or wants to make something that happened. Go back how it was before, such as glucose levels. So this is all go back to how the body was before. But the only thing that's different is D, which is when we see that a clotting factor stimulates other clotting factors. And these clotting factors keep getting stimulated until a fiber in cloth is produced. So that's the product. And after that there is no more clotting factor clotting factors being stimulated so we can see that. That's our answer for which one of these is a positive feedback loop. Thank you.

Hi there. Today, we're going to discuss negative feedback loops, so negative feedback loops are critical in maintaining home yo Stasis in a lot of animals, including humans. So the goal of negative feedback loops is essentially to get back. Teoh what's called a set point, and that is, ah, pretty limited range of conditions that need to be maintained in order for the organism to stay alive. So, for example, humans have a set point of body temperature, a specific range of temperature that they need to stay within. Otherwise, you can, um, get too cold and get hypothermia. Or if you could get too hot, you can overheat. So the set point is really critical for, um, us to stay alive. So for negative feedback loops, um, the way, the way that you get back to this, that point is essentially to change the direction of the stimulus. So if we have our set point here and the stimulus raises whatever metric that is, then usually the body response will be to bring it back down. Conversely, if the stimulus lowers that our responses to bring it back up. So let's take a look at some examples of this. So if someone's hungry, for example, that means that they have gone below the set point of blood glucose levels in their blood. Um so the stimulus in which they need to eat goes down, and our response is we want to bring it back up, so that initiates certain signals within the body to get us to eat. So say we're eating and eating, and then blood glucose levels in our body rise, and that stimulus than our response is to bring it back down to normal glucose levels. And so ah, well will happen, then, is that insulin will be released from the pancreas and that causes cells to absorb glucose and stored as glycogen so that there's not as much glucose roaming around in our blood. And similarly, if you're eating a lot, then there are different responses throughout the body that will act. It's negative feedback signals to stop us from eating. So if this were a positive feedback loop, contraire Allee, then if we were hungry, we would just keep eating and eating and eating and never stop. Another example of this is the production of red blood cells. Um so specific hormone stimulates stimulates us to produce new red blood cells and bone marrow. But if there are plenty of red blood cells floating about, then the hormone is inhibited and won't be released by the kidney anymore. So that's another example. Have a negative feedback loop and often times with negative feedback loops You might have, um ah, threshold set point here. And what will happen is that it might go up and then I might go back down. But you're always trying to reach this middle point again, so it won't exactly be able to hit it right on the mark. The first time at a Josip basically tries to get as close to that set point as possible. So really, a negative feedback loop will, um, might kind of bungee around here. Um, it's not. It's not like a oneto one change, but it will always try to get back to this set point threshold that we need to stay alive.

Hello, everyone. And welcome positive feedback loops are rare and the endocrine system but some do exist. Identify an example of a positive feedback loop. So what exactly is a positive feedback loop? A positive feedback loop is essentially just a cascade cascading effect. So it's when one thing triggers another thing which triggers the first thing. And it just keeps on going back and forth and back and forth, and it's like an avalanche effect. And so if you look at number eight insulin facilitating the decrease of blood sugar levels. Well, when the blood sugar levels rise, our body releases insulin to decrease those levels back down to normal. So this is a negative feedback loop because it restores it back to its original position. Uh, but if you go to par be oxytocin releases, release stimulates milk release. So this is actually going to be our answer or answers Be because, um, oxytocin releases oxytocin release. It will stimulate milk release, which further causes oxytocin to release. And it just keeps on going in a feedback loop which will cause more milk to release. And this right over here is an example of a positive feedback loop because it has that cascading effect. So thank you for watching. And I hope this helped

Hello, everyone. And welcome identifying which type of feedback mechanism primarily controls hormone production releases and release and explain why this occurs and so positive feedback loops. Let's start. Let's start with negative feedback loops. So let's say you are in this car and you're going 75 miles an hour when the speed limit is 60. I'm so looking at the sign you realize you're gonna get a ticket if you keep speeding so you slow down all the way to 50 miles an hour. But then you realize you could still go up some more to get to 60. You don't want to take forever to get there, and so you speed up a little bit more and you realize you're at 65 you keep going until you try to get this sweet spot. And so, um, this is a negative feedback loop where you try to get to a controlled area. It's home. Most days it's your turn to maintain that level. Ah, positive feedback loop is kind of the opposite, where you're just trying t is a spiraling out of control effect. So, um, something a stimulus causes something else, which further causes that stimulus to occur again, and it keeps on the current back and forth. Until that problem ask cascaded. Um, it's a positive feedback loop is just a cascading effect, a cascade and so a cascading effect. And so, um, in hormone production of negative feedback Loop will help maintain the barley functions within a specified range into that specified range. Essentially, uh, talks about the 60 miles an hour that's enough is enough, and the light and now is like an analogy for the 60 miles an hour. And the 75 miles per hour shows what it's currently at and what you're tryingto get it to 60. And so the correct answer is going to be C, a negative feedback loop that maintains proper bodily function within a specified range. So thank you for watching, and I hope this helped


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