Control of blood water potential multiple choice questions

Control of Blood Water Potential

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The kidneys of a healthy individual filter 178 dm³ day^-1 of fluid from the glomeruli into the renal capsules. However, only 1.5 dm³ day^-1 of urine is produced.

What percentage of the filtrate is reabsorbed back into the blood?

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2 of 12

Damage to the hypothalamus results in lower water potential of the blood.

What explains these observations?

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Antidiuretic hormone (ADH) is required for osmoregulation.

What is a region of the nephron that is responsive to ADH?

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What process occurs at the proximal convoluted tubule (PCT)?

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Which substance is not normally found in urine due to being reabsorbed in the nephrons?

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What effect does dehydration have on urine concentration?

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What is the outcome when the blood ADH level is high?

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What triggers the release of ADH from the posterior pituitary gland?

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What does the loop of Henle establish in the medulla to aid water reabsorption?

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Where does the process of ultrafiltration occur in the nephron?

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What are the functional units of the kidney called?

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What is the role of the kidneys in excretion?

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