Homeostasis Quiz
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5 questions, one answer each
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1. Which of the following best defines homeostasis?
- A. The maintenance of a constant internal environment within the body
- B. The process by which the body loses heat to the surroundings
- C. The regulation of blood glucose by the pancreas
- D. The filtration of waste products from the blood in the kidneys
2. When body temperature rises above the set point, which two responses occur to reduce temperature?
- A. Shivering and vasoconstriction
- B. Sweating and vasodilation
- C. Sweating and vasoconstriction
- D. Shivering and vasodilation
3. The pancreas regulates blood glucose through the release of two hormones. Which statement correctly describes their opposing functions?
- A. Insulin decreases blood glucose; glucagon increases blood glucose
- B. Insulin increases blood glucose; glucagon decreases blood glucose
- C. Both insulin and glucagon increase blood glucose levels
- D. Both insulin and glucagon work only on the liver to store glucose
4. A patient's kidneys are no longer filtering blood effectively. Which two kidney structures would be primarily responsible for this failure if damage occurred?
- A. The renal artery and renal vein
- B. The ureter and bladder
- C. The cortex and medulla
- D. The ureter and renal vein
5. The hypothalamus detects a decrease in blood water potential (increased solute concentration). Explain the role of ADH in responding to this change and predict the effect on urine concentration.
- A. ADH decreases; urine becomes more dilute
- B. ADH increases; urine becomes more concentrated
- C. ADH decreases; urine becomes more concentrated
- D. ADH increases; urine becomes more dilute