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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?

Organs will not receive enough oxygen Signup and view all the answers

What is the role of baroreceptors in monitoring blood pressure?

Signal the medulla oblongata to regulate blood pressure Signup and view all the answers

In what situation would baroreceptors cause vasodilation?

When blood pressure is too low Signup and view all the answers

Why should blood pressure be carefully regulated?

To prevent damage to blood vessels Signup and view all the answers

Which part of the brain controls respiratory functions like breathing?

Medulla oblongata Signup and view all the answers

What is the function of vasodilation in blood pressure regulation?

Expand the walls of blood vessels Signup and view all the answers

How do cells get oxygen and nutrients through the blood?

From proper blood flow in vessels Signup and view all the answers