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Homeostasis and Its Importance

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Questions and Answers

What is the primary function of homeostasis in the body?

To maintain physiological variables within a narrow range compatible with death

To maintain physiological variables within a broad range compatible with life

To maintain physiological variables within a narrow range compatible with life (correct)

To maintain physiological variables within a broad range compatible with death

Which of the following is NOT a physiological variable regulated by homeostasis?

Temperature

Fluid balance

Heart rate (correct)

Which of the following is NOT a key aspect of homeostasis?

Regulation of acid-base balance

Regulation of electrolyte balance

Regulation of temperature

Regulation of heart rate (correct)

What would happen if homeostasis was not maintained in the body?

Physiological variables would not remain within a narrow range compatible with life Signup and view all the answers

What is the main purpose of maintaining homeostasis in the body?

To ensure proper functioning of cells, tissues, organs, and organ systems Signup and view all the answers

What is the main function of buffer systems in the regulation of acid-base balance?

Minimize changes in pH by binding or releasing hydrogen ions Signup and view all the answers

How do increased CO2 levels affect acid-base balance through respiratory regulation?

Create respiratory acidosis Signup and view all the answers

What is the consequence of high pH in body fluids disrupting physiological processes?

Alkalosis Signup and view all the answers

How do the kidneys contribute to the long-term regulation of acid-base balance?

By adjusting urine acidity based on metabolic needs Signup and view all the answers

What is the primary consequence of acidosis in the body's internal environment?

Disturbance of physiological processes Signup and view all the answers

Why does the body aim to maintain a slightly alkaline pH in the blood?

To ensure optimal cellular function Signup and view all the answers