Question 5 025 points where would you expect to find sodium...

Question 5 (0.25 points) Where would you expect to find sodium-potassium pumps expressed in the nephron? In the distal convoluted tubule (DCT) only In the proximal convoluted tubule (PCT) only In the proximal convoluted tubule (PCT) and collecting duct In the proximal convoluted tubule (PCT) and thick segment of the ascending limb (TAL) In the proximal convoluted tubule (PCT), thick segment of the ascending limb (TAL) and collecting duct Question 6 (0.25 points) TRUE or FALSE: Cholecystokinin (CCK) works with ghrelin to signal in the arcuate nucleus of the hypothalamus and increase hunger. True False Question 8 (0.25 points) TRUE or FALSE: The primary nitrogenous waste excreted by birds is uric acid. True False

Transcript

00:01 So, in this question, we are given certain statements about nephron functions and we have to tell the correct ones.

00:08 So, first statement is that majority of water reabsorption occurs in the henle's loop.

00:21 Now this statement is not true because major of the water reabsorption will basically occur in the proximal convoluted tubule not the loop of henle.

00:33 Then the second statement is that calcium reabsorption is basically driven by the parathyroid hormone.

00:43 So pth or parathyroid hormone controls the calcium reabsorption and it occurs in the distal convoluted tubule.

00:51 Now this statement is absolutely true because in the distal convoluted tubule many ions many important ions they are reabsorbed into the blood because our body can't afford their excretion and the reabsorption of calcium ions is basically controlled by the parathyroid hormone.

01:15 Hormone.

01:16 Whenever there is low level of calcium in our blood, the parathyroid hormone will be secreted and it will trigger the reabsorption of calcium ions into our blood.

01:33 So this statement is correct.

01:35 Then the third statement is that the majority of the amino acids and many other organic solutes they are reabsorbed in the collecting duct reabsorbed in collecting now this statement is not true because the amino acids and solutes they are basically reabsorbed in the proximal convoluted tubule or the distal convoluted tubule these are not reabsorbed in the collecting duct collecting duct would rather reabsorb water.

02:14 So this statement is false.

02:17 Moving on we have fourth statement which is that facultative water reabsorption, water reabsorption it is basically based on the need of the body that how much water is needed and it will occur in the collecting collecting ducts collecting duct and it is regulated by the anti -diuretic hormone which is adh so this is absolutely true because the water requirement of our body is based on need if the water level is low in our body adh will be released and it will trigger water reabsorption production in our collecting duct and water will be reabsorbed and our urine will become more concentrated...

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