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3 August, 00:08

When you exercise, your muscle cells use oxygen to convert the energy stored in glucose into the energy stored in ATP, which they then use to drive muscle contractions. When you exercise, your muscles need more oxygen. Therefore, to maintain an adequate oxygen level in all of the tissues in your body, you increase respiration rate and depth. This allows you to take in more oxygen. Your heart rate increases, which allows it to deliver more oxygenated blood to your muscles and other organs that will need more oxygen. Is this an example of a positive or negative feedback loop?

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  1. 3 August, 00:57
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    This is an example of a positive feedback loop.

    Explanation:

    Positive feedback loops is a process in which a change caused by the given condition, causes another additional change in the same direction of that process. For example, the condition which is given in the question says that for exercise energy is needed and for that body made some changes which increased the concentration of oxygen in the blood. The negative feedback loop is a process in which a change caused by the given condition, causes another change in the opposite direction of that process and it decreases or stops it.

    Here, positive feedback is happening for that every change is adding another change in the same direction.
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