D3.3 Homeostasis Quiz
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5 questions, one answer each
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1. Which is NOT a homeostatic variable in humans?
- A. Blood pH
- B. Blood glucose concentration
- C. Heart rate during exercise
- D. Blood osmotic concentration
2. A person's blood glucose falls during a long walk. Which hormone is secreted?
- A. Insulin from β cells
- B. Glucagon from α cells
- C. Thyroxin from the pituitary
- D. ADH from the hypothalamus
3. Which describes type 2 diabetes?
- A. No insulin because β cells are destroyed
- B. Target cells respond poorly to insulin
- C. Too much glucagon is secreted
- D. It always begins in early childhood
4. Which response increases heat production rather than reducing heat loss?
- A. Vasoconstriction
- B. Hair erection
- C. Shivering
- D. Sweating less
5. Which gland secretes TSH, which leads to thyroxin release?
- A. Hypothalamus
- B. Pituitary
- C. Thyroid
- D. Pancreas