Osmoregulation and ADH Quiz
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5 questions, one answer each
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1. Which process moves glucose from the filtrate into the cells of the proximal convoluted tubule?
- A. Simple diffusion
- B. Co-transport with sodium ions
- C. Osmosis
- D. Direct active transport using ATP
2. Which statement about the ascending limb of the loop of Henle is correct?
- A. It is permeable to water
- B. It reabsorbs glucose
- C. It actively transports sodium ions into the medulla and is impermeable to water
- D. It releases ADH
3. A person becomes dehydrated. What happens next?
- A. More ADH is released and the collecting duct becomes more permeable
- B. Less ADH is released and urine is dilute
- C. The osmoreceptors stop working
- D. More aquaporins are removed from the collecting duct
4. Where is ADH released from?
- A. Hypothalamus osmoreceptors
- B. Posterior pituitary gland
- C. Collecting duct
- D. Adrenal gland
5. A mammal has very short loops of Henle. Which urine would you expect it to produce?
- A. Very concentrated urine
- B. No urine
- C. Urine containing glucose
- D. Dilute urine, as little gradient is built up