ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Less ADH is released, causing more water to be reabsorbed in the nephrons
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More ADH is released, causing less water to be reabsorbed in the nephrons
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More ADH is released, causing more water to be reabsorbed in the nephrons
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None of the above
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Detailed explanation-1: -More ADH will be released, which results in water being reabsorbed and a more concentrated but smaller volume of urine will be produced. This type of control is an example of the negative feedback mechanism. It aims to keep the concentration of the blood plasma constant.
Detailed explanation-2: -ADH is released by the pituitary gland when the blood is too concentrated and it causes the kidney tubules to become more permeable . This allows more water to be reabsorbed back into the blood during selective reabsorption.
Detailed explanation-3: -If your body produces too much ADH and water is retained, your blood volume increases and leads to symptoms like: Feeling nauseous. Headaches. Disorientation‌
Detailed explanation-4: -ADH increases water and urea permeability of the distal nephron, leading to excretion of a small volume of concentrated urine, thereby minimizing further loss of blood volume and decreasing the osmolarity of the plasma back toward normal.
Detailed explanation-5: -ADH travels in the bloodstream to its target organ, the kidneys. It causes the kidney tubules to become more permeable . This means more water can leave the kidney tubule to be reabsorbed back into the blood during selective reabsorption.