Control of blood water potential Quiz
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5 questions, one answer each
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1. What detects a fall in the water potential of the blood?
- A. Cells of the DCT
- B. Osmoreceptors in the hypothalamus
- C. Podocytes
- D. The posterior pituitary
2. Which of these is NOT normally found in glomerular filtrate?
- A. Plasma protein
- B. Glucose
- C. Urea
- D. Sodium ions
3. Which statement describes the ascending limb of the loop of Henle?
- A. It is permeable to water and passively loses sodium ions
- B. It actively transports sodium ions out and is impermeable to water
- C. It reabsorbs glucose by co-transport
- D. It responds to ADH by adding aquaporins
4. A person drinks a large volume of water. What happens next?
- A. More ADH is released and urine becomes concentrated
- B. Less ADH is released and more dilute urine is made
- C. The glomerular filtration stops
- D. Sodium ions are no longer reabsorbed
5. Why can a patient with very high blood glucose have glucose in the urine?
- A. Glucose is too large to be filtered
- B. The carrier proteins in the PCT are saturated
- C. ADH stimulates glucose secretion
- D. The loop of Henle is impermeable to glucose