Positive Feedback Mechanism Quiz
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Questions and Answers

Why is pH important for biological processes?

  • To regulate blood pressure
  • To control nerve impulses
  • To increase body temperature
  • To ensure proper functioning of biological processes (correct)

What controls the muscles and organs in the respiratory system?

  • pH levels
  • Baroreceptors
  • Nerve impulses (correct)
  • Blood pressure

How is blood pressure regulated?

  • By a positive feedback mechanism
  • Via a homeostatic mechanism (correct)
  • Through glucose regulation
  • By increasing body temperature

What happens if blood pressure rises too high?

<p>Organs will not receive enough oxygen (B)</p> Signup and view all the answers

What is the role of baroreceptors in monitoring blood pressure?

<p>Signal the medulla oblongata to regulate blood pressure (D)</p> Signup and view all the answers

In what situation would baroreceptors cause vasodilation?

<p>When blood pressure is too low (C)</p> Signup and view all the answers

Why should blood pressure be carefully regulated?

<p>To prevent damage to blood vessels (C)</p> Signup and view all the answers

Which part of the brain controls respiratory functions like breathing?

<p>Medulla oblongata (D)</p> Signup and view all the answers

What is the function of vasodilation in blood pressure regulation?

<p>Expand the walls of blood vessels (A)</p> Signup and view all the answers

How do cells get oxygen and nutrients through the blood?

<p>From proper blood flow in vessels (A)</p> Signup and view all the answers

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