Question

Take notes from the following to explain homeostasis and how positive feedback are essential to maintaining homeostasis. Write notes from the below reading in 4 label sentences in a 6th grader’s response


READING.

Positive feedback is when, instead of getting a counteracting response to some variable, you instead intensify the variable.Positive feedback can be like
"more more more" instead of "let's counteract this." The example that always stuck with me when I was a student is the example about the human baby being born. In biology classrooms everywhere, it's a classic example. When a human baby is ready to be born, there is pressure on the cervix. And that pressure and the hormones involved cause contractions of the uterus---because that's a big part about how the baby is going to be born. More release of hormones will equal more contractions and pressure which will cause more release of hormones. And more release of hormones will mean more contractions and pressure.
Contractions help get the baby out, but it's
also part of a beautiful illustration of what
positive feedback can do. Other then, you know, the importance of negative feedback in maintaining homeostasis and the role of positive feedback in many body processes? Well we also need to
understand feedback so we can understand
what is happening when there is a problem in the feedback systems. One example: perhaps you've heard of Type
1 diabetes. It's a disorder that can mean that your pancreas, which is an organ that is involved with making some hormones like insulin, is not working correctly. Insulin is not produced and, because of that, one issue is that you are not going to be able to get glucose (the blood sugar) into your cells. Glucose outside of the cells cannot be used in cellular respiration---the cells need to take the glucose IN to make ATP energy in cellular respiration. Therefore, your cells need to be able to take IN the glucose to survive.So, many Type 1 diabetics need to give themselves insulin and monitor their blood sugar because the negative feedback may not work as it should.

Answer 1

1. Homeostasis means your body keeps things like temperature and blood sugar balanced so your cells can work and you stay healthy.
2. Negative feedback fixes changes by doing the opposite, but positive feedback makes a change get bigger and is essential for some body events that must finish quickly.
3. For example, in childbirth the baby pushes on the cervix, that makes hormones that cause stronger contractions, and the contractions make more pressure and more hormones until the baby is born.
4. If feedback breaks, like in Type 1 diabetes the pancreas doesn't make insulin so blood sugar can't get into cells for energy, and people need insulin shots because the normal feedback that keeps blood sugar balanced isn't working.